NEW : Israel scolds former crew for being on Gaza - bound boat . Israeli naval vessel , boat with medical volunteers collide in Mediterranean . Israel 's crew contends naval vessel hit it intentionally . Israel denies intentionally hitting boat carrying food , medical supplies .
NEW : Israel scolds former congresswoman for being on Gaza-bound boat . Israeli naval vessel , boat with medical volunteers collide in Mediterranean . Boat 's crew contends naval vessel rammed it intentionally . Israel denies intentionally hitting boat carrying journalists , medical supplies .