New Details of the February 1st 2018 Chlorine Attack in Douma, Damascus

The following report was created in partnership with Syrians for Truth and Justice (STJ). The Arabic version of this report can be read here.


On February 1 2018 Douma city was shelled with poisonous gases for the third consecutive time in less than one month, and according to many testimonies STJ obtained through its network of field reporters and Bellingcat’s analysis of open source material, five rockets, loaded with chemical substances believed to be chlorine gas, landed in the densely populated area in the western neighborhoods of Douma, resulting in the suffocation of three civilians, including a woman.

Syrian regular forces had twice previously used poisonous gases on Eastern Ghouta. The first time was on January 13, 2018, where the area that links Harasta and Douma cities was shelled with poisonous gases causing injuries to six civilians, including women and children, examined in an earlier report published by STJ. The second incident occurred on January 22, 2018, where residential neighbourhoods in the western northern region of Douma were shelled with poisonous gas resulting in the injury of 21 civilians, including women and children. STJ published a joint report with Bellingcat concerning that incident.

Analysing the used munitions in the attack:

According to Bellingcat, the munitions used in the February 1 attack are Improvised Rocket Assisted Munitions (IRAMs), based on modified Iranian 107mm rockets. The standard warhead has been replaced with a large pressurized gas cylinder, and tail fins have been added to the rocket. The munition matches exactly with the design of munition used in the January 22 2018 chlorine attack in Douma, Damascus, as well as chlorine attacks that took place in Damascus in early 2017. In some cases, rockets from the 2018 attacks share the same lot numbers, indicating they are from the same manufacturing batch. This strongly indicates that the rockets used in the 2018 attacks would have originated from the same source:

Remnants of the munitions used in the February 1 2018 attack.
Photo credit: Coordination of Douma

Remnants of rockets used in the February 1 2018 attack. Photo credit: Coordination of Douma

Hasan al-Durra, from Douma, was at the site of the attack, and spoke to STJ:

“At 5:30 a.m. February 1, 2018, and while we, I and my family, were sleeping at home, we heard shooting of several rockets but we did not hear its explosion sound, and after a few minutes, we smelled home chlorine-like adore, it spread gradually until it became  unbearable, and when we tried to get out of the house, the smell was stronger outside, so we went inside again, and I lit one of the heaters to keep the poisonous  gas out, but we could still breathe well. I was so afraid for my children, and I didn’t know what to do, so then I brought pieces of wet cloth and put them on their faces, we stayed struggling to live until the sun came out and the odor began to fade gradually. “

Impact site and the source of the rockets:

Using videos posted by Firas Abdullah on the day of the attack it is possible to geolocate the impact sites of three of the rockets used in the February 1 attack to farmlands on the west side of Douma:

Impact sites of the 3 of the munitions used in the February 1 attack, geolocated and verified by witnesses
Image credit – Digital Globe/Google Earth

Multiple organisations and individuals have tracked the progress of fighting in the area on a regular basis, showing little movement in the front lines closest to the locations attacked, despite a recent attempt by government forces to capture the area. A map from pro-government “war correspondent, photographer and war map designer” Maxim Mansour posted on January 12, 2018, the day before another chlorine attack reported on January 13, shows government forces attacking the area:

Maxim Mansour’s map showing frontlines in East Ghouta. Image credit – Maxim Mansour

Maps from the pro-government South Front website dated January 18 and January 29 show similar front line positions, with no change between the two dates. Maps from the pro-opposition FSA News also show the same front lines during that period, as does the conflict mapping website LiveUAMap. With this agreement among multiple sources about the position of front lines the closest government positions to the impact sites would be 400-600m away.

It is also possible to establish the likely trajectory of rockets used in the February 1 attack. In one geolocated video, Firas Abdullah films the impact crater of one of the rockets:

The crater from the impact of one of the munitions used on February 1 2018. Image credit – Firas Abdullah

The shape of this crater indicates the rocket would have come from the west, from the direction of the Syrian government positions around 1km away. In another video filmed by Firas Abdullah, we see an impact site where the warhead of the chemical munition is still embedded in the ground, close to a large wall. The impact crater is west of the wall, which runs north-south, and the height of the wall, and the position of the impact crater, would make it extremely unlikely for the munition to have come from the east without first hitting the wall. This again indicates the munition would have come from government positions in the west. Further to the west, the 41st Regiment military base can be found 2km away from the impact sites.

“The smell was very strong, so we started to help the injured as there were four cases transferred to Damascus Countryside Specialty Hospital. Five Katyusha rockets (modified rockets) with homemade devices fired into the same area, and most of them exploded immediately after they hit the ground, I could see those five rockets with their containers while we were checking civilians safety in the area. Anyway, the distance was not so great between the locations of those rockets not more than 30 m maximum, and I could see a green substance turnnd to blue on the rocket detonator similar to the substance on the frames of the containers, I didn’t know what it was, but all I knew was that these rockets caused significant casualties among civilians in large areas within populated neighborhoods reaching 3 km depth within Duma, that matter caused a state of intense panic and fear among people.”

Image of a filling valve attached to the front of one of the warheads. Photo credit: STJ

Image shows three rocket motors, and two warheads, from the munitions used in the February 1, 2018 attack. Photo credit: STJ

Yasser Al-Shami, the director of the medical office in Douma, told STJ that many cases had been transferred to the medical centers in the city. However, early warning and rapid evacuation of civilians contributed to reducing the number of casualties, he continued:

“At 5:45 am February 1, 2018, we received three cases of toxic gas inhalation, including women, suffering from dyspnea, irritation and sweating in spite of the cold weather. It was clear from the smell of their clothes that they were exposed to a gas attack similar to chlorine smell. These cases were treated by sprays and bronchodilator, and stayed under medical observation for two hours and then we released them. “

On February 2, 2018, the local council of Douma published a statement confirming that at 5:30 am the residential neighborhoods of Douma had been exposed to attack by poisonous gas using ground-to-ground missiles, which caused injuries among civilians. The statement also pointed out that this attack was the third attack of its kind in less than a month:

The statement issued by the local council of Douma on February 1, 2018. Photo credit: The local council of Douma

Several sources told STJ that the rockets launched at Douma had been fired from the Regiment (41) base adjacent to the area of Barzeh. They also stated that the poisonous gas had reached many neighborhoods of the city, causing panic in the local population, as locals thought that the used gas was chlorine. Activists stated they believed it was very likely that Syrian forces had modified this gas to produce future effects and more severe damage than usual for  usual chlorine gas.

Video footage published by Smart Agency on February 1, 2018 showed remnants of the munitions used in the attack, noting that the Syrian regular forces had used ground-to-ground rockets loaded with poisonous gas on the outskirts of the city.

Annex: Images taken by Syrians for Truth and Justice showing the German insulation material inside one of the rockets that had been used in the third chemical attack in Eastern Ghouta on February 1, 2018

Bellingcat’s research for this publication was supported by PAX for Peace.