A Palestinian man was killed and 20 others were wounded Tuesday during an Israeli arrest raid targeting Palestinian suspects in this West Bank city, Palestinian hospital officials said. Stone-throwing clashes and sporadic gunfights erupted in Nablus after the troops entered the area. Nablus, the largest city in the West Bank, is known as a stronghold of Palestinian militants. Hussam Saker, 22, was shot in the head during a stone-throwing clash near the Balata refugee camp on the outskirts of the city. He died later in a hospital, medical officials said. The officials said the man had been unarmed, according to a report of the Associated Press. --SP 1502 Local Time 1202 GMT