A US-led coalition carried out 12 air strikes against ISIS militants in Iraq and one in Syria on Monday, a US military statement said.

Twelve air strikes in Iraq were concentrated near Sinjar, Kisik and Ramadi, a Sunni city in western Iraq that was captured by ISIS in May, said the statement on Tuesday.

In Syria, an attack by a fighter plane destroyed an ISIS mortar system near Mar'a, it said. It was the first coalition air strike against the militant group in Syria reported since Thursday.