Three Palestinians were killed in Jenin refugee camp in the West Bank Saturday after Israeli soldiers launched an operation to arrest a militant, Palestinian officials said. Medical and security sources said two of those killed were militants and the third was a civilian, and that 14 other Palestinians were wounded, two of them in critical condition. The Palestinian sources said soldiers entered the camp in the **rthern West Bank city to arrest Hamza Abu Alheja, 20, a member of the Hamas military wing, the Ezzedine al-Qassam Brigades. Clashes broke out resulting in the death of Abu Alheja and a**ther militant, Mahmud Abu Zena, 19, of the Islamic Jihad.