Heavy fighting flared on Sunday between Libya’s army and Islamist militias apparently trying retake one of their largest camps in the eastern city of Benghazi, military officials said.

At least 130 people have been killed in the past 10 days during street fighting in Libya’s second-largest city — part of a wider picture of chaos gripping the major oil producer three years after the downfall and death of Muammar Gaddafi.

The nascent army, backed by forces of a former general and armed youths, launched earlier this month an offensive against Islamists in Benghazi, expelling them from the airport area and the February 17 camp, one of their strongholds in the port city. […]