Commanders and a spokesman for Libya's Islamist-allied militias say four airstrikes by unidentified parties hit a western town near the capital Tripoli, killing one person and wounding five.

Mohammed al-Gharyani, spokesman for the Libya Dawn alliance, said on Monday that the airstrikes targeted Gharyan, 50 miles south of Tripoli. He said militiamen told residents to leave targeted areas.

A militia commander said the strikes targeted Libya Dawn ammunition warehouses and were aimed at helping rival militias return to Tripoli. He spoke on condition of anonymity because he was not authorized to speak to the press.

U.S. officials have said similar airstrikes in the past were carried out by Egypt and the United Arab Emirates. Cairo has denied intervening in Libya, and the Emirates has not commented on the allegations.