Islamic State fighters take on Libya's rival government forces

TRIPOLI/BENGHAZI (Reuters) - Militants claiming allegiance to Islamic State fought forces loyal to Libya's two rival governments in the central city of Sirte and further east in Benghazi, a Libyan news agency and residents said on Wednesday. In Sirte, Islamic State militants killed five members of a force loyal to the government that controls Tripoli, a Tripoli-based news agency said. Two military sources said the attack near a power station on Sirte's western outskirts appeared to be