Armed westerners have been filmed on the front line with rebels near Misrata in the first apparent confirmation that foreign special forces are playing an active role in the Libyan conflict.

A group of six westerners are clearly visible in a report by al-Jazeera from Dafniya, described as the westernmost point of the rebel lines west of the town of Misrata. Five of them were armed and wearing sand-coloured clothes, peaked caps, and cotton Arab scarves.