Syrian authorities arrest ex-officer accused of supervising sarin gas bomb manufacture

What happened

Al Jazeera Syria reports that Syrian authorities have arrested former colonel Ahmed Habib Ali on accusations of supervising sarin gas bomb manufacture under the Assad regime. The Interior Ministry identified Ali as a chemical weapons specialist responsible for sarin storage and production at Unit 417, near Damascus.

Outside Brief is treating this as a source-led account. Any disputed responsibility, casualty figure, battlefield claim or single-source assertion should be treated as unconfirmed/hearsay unless confirmed by another reliable source or a named official. According to the ministry, Ali was involved in supervising the manufacture of around 20 sarin-loaded bombs, each weighing approximately 250 kilograms, which were allegedly used in attacks against Syrian cities and towns between 2013 and 2017. These claims come amid Syria's recent reinstatement into the Organisation for the Prohibition of Chemical Weapons (OPCW), which had suspended Syria’s voting rights in 2021 over confirmed chemical attacks.

The deadliest known sarin attack occurred in August 2013, when Syrian forces were accused by US intelligence and rights groups of killing over 1,400 civilians in rebel-held areas. Despite prior commitments to dismantle chemical arsenals, Damascus faced accusations of additional sarin and chlorine attacks from 2014 to 2017. Ali’s detention is reportedly part of broader efforts to hold former regime figures accountable for wartime conduct following Bashar al-Assad’s fall in late 2024.

Known from the source

• Syrian authorities detained former colonel Ahmed Habib Ali.
• The Interior Ministry identified Ali as a chemical weapons expert linked to sarin storage and manufacture at Unit 417.
• Ali is accused of supervising manufacture of about 20 sarin gas bombs weighing 250 kg each.
• These bombs were reportedly used in attacks on Syrian towns and cities between 2013 and 2017.
• Syria was reinstated to the OPCW a week prior to the announcement.

What remains unclear

Since December 2024, dozens of arrests have targeted alleged war crimes linked to the civil war’s violent suppression of dissent. Syrian judiciary has also initiated public trials for such offenses. However, source material does not independently verify the details of Ali’s activities or the exact involvement in specific attacks.

What remains unclear: Confirm whether the central claim is corroborated; until then treat it as unconfirmed/hearsay. Verification of Ali’s direct involvement in manufacturing and deploying sarin bombs. Independent confirmation of casualty figures related to the 2013 and subsequent alleged attacks. Official OPCW statements or reports related to this arrest or investigation updates.

Evidence note

This story contains report-led claims. The article keeps those claims attributed and treats them as unconfirmed/hearsay unless independently corroborated.

Original source: Al Jazeera Syria. Open the source.