How Islamic State clings on in Libya

LIKE their comrades in Iraq and Syria, the jihadists of Islamic State (IS) in Libya were in retreat earlier this year. Their branch, considered the most lethal outside the Levant, was pushed out of Sirte, its coastal stronghold, in December and hit hard by American bombers in January. The blows seemed to dispel the idea that, as the core of its “caliphate” crumbled, Libya might serve as a fallback base for IS.

But although the jihadists are down in Libya, they are not out. And they may have international reach. Many of the fighters have regrouped in a swathe of desert valleys and rocky hills south-east of Tripoli. British police are probing links between Salman Abedi, the suicide-bomber who murdered 22 people at a concert in Manchester on May 22nd, and IS, which claimed responsibility for the attack. Mr Abedi was in Libya recently; his brother and father were arrested in Tripoli on May 24th. The militia holding them says the brother is a member of IS and was planning an attack on Tripoli.