Libyan army troops and armed residents clashed with Islamist fighters in the eastern port of Benghazi on Wednesday, killing at least four people, a day after a renegade former general who backs the army vowed to retake the city from the militants.

Libya’s second largest city is caught up in a chaotic struggle for control between an alliance of Islamist militia groups and the army, which is backed by forces loyal to former general Khalifa Haftar.

Gunfire could be heard in several districts from early morning, residents said. At least four soldiers were killed and eight wounded, a figure likely to rise, hospital medics said. […]