The leader of Islamic State in Syria, one of the top five leaders of the militant group, has been killed in a US air strike, the US military said on Tuesday.
In a statement, US Central Command said Maher al-Agal had been killed in a drone strike in northwesten Syria and a close associate of his was seriously injured.
"Extensive planning went into this operation to ensure its successful execution. An initial review indicates there were no civilian casualties," the statement added.
It said al-Agal was responsible for developing ISIS networks outside of Iraq and Syria.
The Syrian Civil Defence, a humanitarian organisation operating in opposition-held areas, said an unidentified drone targeted a motorcycle in the village of Khaltan in the northern countryside of the Aleppo region, killing two people.
The US military did not mention a motorcycle in its statement but said a senior ISIS official closely associated with Maher was seriously injured during the strike.