Updated 11.30

Observers say air strikes on northern Syria have killed at least 33 members of the so-called Islamic State (IS) group in the last three days.

The Syrian Observatory for Human Rights says dozens of fighters were also wounded on Sunday, Monday and Tuesday.

France has been bombing the area this week, in response to Friday's attacks in Paris.

Meanwhile, Russian forces have also been bombing IS targets in Syria after security services confirmed a Metrojet flight that came down in Sinai, killing 224, was bombed.

Video of Russian Aerospace Forces loading bombers in preparation for launch