CAIRO - The Tunisian authorities started questioning 14 Egyptian fishermen, who were arrested two weeks ago for illegally trespassing in Tunisia's territorial waters, the head of an Egyptian fishermen's union said. "The Tunisian authorities have started questioning the 14 fishermen arrested on board the Youssef Killani boat on August 18," said Ahmed Nassar, the head of the Fishing Welfare Association of Borg Megheizel. Nassar, who stressed that the captain of the vessel had phoned him, added that the fishermen have been charged with violating Tunisian fishing laws and attempting to sink a naval ship that was chasing their boat. The captain, now held in the Tunisia's Port Sfaxian, has called on the Supreme Council of the Armed Forces and the Foreign Ministry to secure their release and that of their boat, claiming that they did not enter Tunisia's territorial waters.