Activists beheaded in Libyan city of Derna

There appear to be three main militant groups competing for control of Derna

Three young activists have been found beheaded in Derna, in eastern Libya.

The three, who had relayed information about the city through social media, had been kidnapped earlier this month.
Several Islamist groups are competing for control of the city, with some militants recently declaring allegiance to Islamic State.
Libya has been in a state of flux since Col Gaddafi was overthrown in 2011, with disparate tribes, militias and political factions fighting for power.

The activists have been named as Siraj Ghatish, Mohamed Battu and Mohamed al-Mesmari who according to a BBC report were operating on a low profile mainly through social media.