Forces allied to one of two rival governments vying for power in Libya conducted air strikes near the Tunisian border and vowed to shut the main land border crossing between the two countries, officials said.

Libya is caught in a conflict between two governments, one self-declared after a group called Libya Dawn took over Tripoli in August and the second led by internationally recognized Prime Minister Abdullah al-Thinni, who was forced out of the capital and now operates from eastern Libya.

There were different accounts of the air strikes on Friday, the latest in a series this week, part of turmoil gripping the oil-producing country three years after the ousting of Muammar Gaddafi. […]