Syrian security forces have killed three ISIL (ISIS) fighters and arrested four others in Aleppo, authorities said, the first time the interim government has announced such an operation against the group in Syria’s second city.

The raids, launched by the General Security Department in coordination with the General Intelligence Service, targeted multiple ISIL sleeper cells operating across Aleppo, Syria’s Ministry of Interior said in a statement on Saturday.

One security officer was killed in the operation, it said.

Forces stormed the site and seized “explosive devices, an explosive vest and a number of General Security force uniforms”, the statement added.

The UK-based Syrian Observatory for Human Rights said the operation took place in Aleppo’s Haidariya district and that clashes also broke out in another neighbourhood.

Interim Syrian President Ahmed al-Sharaa, who assumed power in Damascus in December, has long opposed ISIL. His forces battled the group’s self-declared caliphate during the Syrian war.

US President Donald Trump met al-Sharaa this week in Saudi Arabia and described him as an “attractive guy with a very strong past”.

Following the meeting, Washington announced that it would lift sanctions on Syria – a major policy shift and boost for al-Sharaa’s transitional government.

Al-Sharaa seized power in Damascus in December after his forces toppled Bashar al-Assad in a lightning offensive. Al-Sharaa cut ties with al-Qaeda in 2016.

The recent operation comes just months after Syrian authorities said they had foiled an ISIL bombing plot near the Sayeda Zeinab shrine, a key pilgrimage site for Shia Muslims south of Damascus.