US hits ISIS positions in Libya as air war enters third month

US military aircraft pounded Islamic State positions in the jihadists' former Libyan stronghold of Sirte over the weekend, as the US air campaign entered its third month, the Pentagon said on Monday.

According to the US military's Africa Command, US pilots conducted 20 air strikes on Sunday alone, most of them against "enemy fighting positions."

When the Pentagon announced its latest front in the war against the ISIS group on August 1, officials said the campaign to help local forces push the jihadists from the coastal city of Sirte would likely be quick, taking "weeks, not months".