FOUR Italian missionaries who escaped their rebel kidnappers in Sierra Leone last were to leave Freetown Sunday for Italy, the Misna agency reported. The Rome-based missionary news agency said the four were to fly by helicopter to Lungi, then on to Guinea, before travelling to Italy. The clerics escaped on Wednesday during an air raid and managed to reach a safe part of the Sierra Leonean capital where the Nigerian-led West African troops Ecomog have been pushing back a rebel offensive. The fate of six other missionaries, including a monk and five sisters of the Mother Theresa Charity abducted in mid-January is still unknown. Kidnappers killed sister Aloyius Maria, a Roman Catholic nun of Indian origin, on Friday.