The US-led coalition staged six air strikes against Islamic State targets in Syria and Iraq in the past 24 hours, the Combined Joint Task Force said on Saturday morning.

The coalition carried out 10 strikes between Thursday and Friday.

The coalition said the latest of the daily raids included one that destroyed two Isis fighting positions near Kobani, Syria, where Kurdish forces have been pushing back Isis with the help of the coalition, after a long siege.

Five air strikes near the Iraqi cities of Al Asad, Ar Rutbah, Mosul and Sinjar destroyed buildings, boats, vehicles and a fighting position, the task force said in a statement.

Iraqi forces are preparing an offensive, expected to launch in April or May, to take Mosul back from Isis.

Strikes against Isis began in Iraq on 8 August and in Syria on 23 September. Recent Egyptian air strikes, launched after Isis released video showing the beheading of 21 Christian workers, hit targets in Libya.

This week, Turkey and the US signed an agreement to co-operate in training Syrian rebels to fight against Isis.