Israeli forces on Thursday killed four Palestinians including a teenager in the occupied West Bank, the latest deadly raid on Jenin which Israel said targeted "armed suspects".Dozens of masked, heavily armed men fired into the air as they paraded through the streets for the funerals of the four dead, including two who Palestinian groups and the Israeli army identified as militants.The Israeli army intially said troops "neutralised" two suspected militants in the northern West Bank city, accusing them of "terrorist activities".