At least one warplane belonging to an armed group controlling Libya’s capital attacked a western town allied with the internationally recognized government on Wednesday, officials said, the latest in a series of tit-for-tat attacks.

Oil-producing Libya is divided, with Prime Minister Abdullah al-Thinni’s recognized government and his allies locked in a conflict with the armed faction that took over Tripoli in August and set up a rival administration.

The United Nations is trying to negotiate a deal to stop the North African country’s sliding deeper into civil war, four years after the uprising that toppled leader Muammar Gaddafi. […]