( CNN ) -- Three Palestinians , including a Hamas operative , were killed and seven were injured during a confrontation with Israeli military forces in a Jenin refugee camp early Saturday , Palestinian security sources said . A large number of Israeli troops and undercover operatives raided the refugee camp and surrounded a suspected militant 's house inside the camp . The troops shot at the house , the sources said , and the suspected militants returned fire . The Israeli military said it was an operation by the Israel Defense Forces and Israel Security Agency to arrest Hamas operative Hamza Abu Alhija . Abu Alhija was wanted for alleged involvement in shooting and bombing attacks against Israel , the Israeli military said . According to Israel , it was Abu Alhija who fired first . `` During the mission , Abu Alhija barricaded himself with other operatives in his house , '' the Israeli military said . `` Abu Alhija opened fire at the forces , wounding two security personnel , and then attempted to escape while continuing to shoot . The security personnel responded with fire . '' Abu Alhija was killed in the shooting , Israeli forces said , along with two others . Three of the injured are in critical condition , Palestinian medical sources said . Thousands of Palestinians took part in the funeral procession in Jenin , north of the West Bank .
Israel carried out an operation inside Jenin refugee camp . The IDF said it targeted a number of Hamas operatives and weapons caches. Both sides blame the other for firing first . Three Palestinians were killed , including a Hamas operative .