Syria’s chemical rockets

The alleged chemical attack on April 7 is the sixth chemical attack in Douma in 2018. Munitions recovered from previous attacks show they are modified Iranian 107mm rockets

Improvised rocket assisted munition (IRAM) 
IRAM takes conventional rocket and replaces warhead with much larger one, increasing destructive power while sacrificing range and accuracy

Solid-fuel rocket motor
Connection plate: Permits different warheads – chemical or high explosive
Central column: Fits over rocket section
Payload: Chlorine or chemical cocktail
Bursting charge: In top of central column 
Detonator
410mm
Rocket nozzle
Stabilizing fins and ring added
Filler port with screw cap
Warhead: Canister grooved on inside to ensure rupture on detonation

Suspected chemical attacks on Douma
Jan 22: At least 13 people suffer suffocation symptoms
Feb 1: 20 cases of suffocation
Mar 7: 30 cases of suffocation
Mar 11: Choking symptoms
Apr 7: Suspected attack using chlorine and nerve agent

Sources: Bellingcat, Global Security, Human Rights Watch
Picture: Getty Images
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