Libya's GNA forces still face resistance in Sirte

Forces loyal to Libya's Government of National Accord (GNA) recapture large chunks of the coastal city of Sirte that IS jihadists seized in June 2015 as a staging post for an expansion into North Africa. But they are struggling to dislodge the last pockets of IS fighters, holed up in the fiercely-defended district of Al-Giza Al-Bahriya, in a costly battle that has left at least 667 dead and 3,000 wounded in GNA ranks.