A missile attack in northern Syria near the Turkish border killed one person and injured at least 11 others on Friday, Turkish state media and sources from the Turkish-backed side that control the region said.
The explosion struck a local oil refinery near Albab and Jarablas, causing a massive fire, said Turkish witness and news agency Anadolu.
A source in the National Army, which controls the northwestern area of Syria, where the Turkish forces is based, said the missile attack caused an explosion and injured 11.
Anadolu said they were missiles and it was unclear who carried out the attack, saying 18 people were injured.
Turkey has supported fighters trying to topple Bashar al-Assad, but the Syrian president, with Russia and Iran̵7;s help, has driven back insurgents into pockets in the northwest of the country.