B'Tselem reports that through 30 April 2008, out of 4,745 Palestinians killed by Israeli security forces, there were 1,671 "Palestinians who took part in the hostilities and were killed by Israeli security forces", or 35.2%. According to their statistics, 2,204 of those killed by Israeli security forces "did not take part in the hostilities", or 46.4%. There were 870 (18.5%) who B'Tselem defines as "Palestinians who were killed by Israeli security forces and it is not known if they were taking part in the hostilities".