A six-year-old Palestinian child was killed by Israeli fire in Balata refugee camp outside this northern West Bank city. Mohammad al-Araj was hit in the chest after being caught out in the street by exchanges between stone throwing demonstrators and Israeli troops, Palestinian medics said Sunday. Another Palestinian boy was pronounced dead Sunday after being shot by Israeli troops and fell into coma in the Nablus. Palestinian medical sources in the West Bank city said that Noureddin Emran, 16, was shot by Israeli soldiers in the Balata refugee camp. He was shot with a rubber-coated bullet in his head and fell into coma. Also in the refugee camp, Zuhair Awis, 48, was killed by tear gas used by Israeli troops. Zuhair was the brother of Nasser Awis the founder of Al Aqsa Martyrs Brigades, who is jailed in Israel. Earlier, Israeli occupying forces operating in the city, detained Adnan Asfur, 38, in the early hours of Sunday. Asfur, is a prominent Hamas leader and also the official spokesman of the movement in the West Bank. He has been wanted by Israel for several years, Al Jazeera TV said. Asfur was staying in his brother's house when the Israeli forces raided it. Dr. Muhammad Ghazal, a political leader of Hamas, reacted to the arrest by saying it will not stop the Palestinian people from continuing its intifada. Overnight Saturday, Israeli troops demolished two buildings in the outskirts of Rafah, near the border between Israel and Egypt. Israeli security sources said that the buildings were used as a starting point for an underground tunnel that last week took Palestinians close to an Israeli outposts, where they detonated two explosive devices. **Israeli Commandos Refuse to Serve in W. Bank, Gaza*** Thirteen soldiers in Israel's commando unit have publicly refused to serve in the West Bank and Gaza Strip because they believe the army's operations there are immoral, Israeli media reported. The commandos announced their refusal to serve in a letter sent to Ariel Sharon, who has come under increased pressure to halt efforts to quash a three-year-old Palestinian uprising and instead engage in peace treaty talks. "We will no longer be party to an oppressive rule in the territories and the disregard for the human rights of millions of Palestinians," the 13 Sayeret Matkal reservist commandos wrote in their letter, according to local television stations. "We will no longer be a defensive wall against settlements," added the letter, in a reference to Jewish settlements in lands Israel occupied in the 1967 Middle East war. The Sayeret Matkal, or General Staff Reconnaissance Unit, is Israel's most elite commando unit and has often been compared to the U.S. military's Delta Force or the British army's SAS. It has carried out some of the Israeli army's most daring missions including the rescuing of 106 passengers taken hostage by Palestinian guerrillas at Entebbe Airport in Uganda in 1976. During the uprising, the Sayeret Matkal has been involved in raids to arrest senior Palestinian commanders behind a bomb attacks against Israel. The commandos' letter followed a petition earlier in the year from 27 air force pilots -- all but nine of whom had retired -- as refusing to carry out missions against Palestinian leaders in which civilians could be killed. The 13 signatories to the commando letter were all identified as being reservists, but it was not clear how many were still involved in active military duty. Sharon's office declined to comment, but military officials described the letter as political, noting that it was sent to Sharon and not military commanders. "It is very serious that reserve soldiers are using their military past and the name of the unit in which they served as a vehicle to publish their political views," an army spokesman said about the letter. One of the signatories, identified as Zohar, told Channel One Television: "This is not a political letter...we spoke of the phenomena of occupation which corrupts." **PHOTO CAPTION*** A Palestinian police officer carries the body of 5-year-old Mohammed Al Araj into the Rafidya hospital in the West Bank town of Nablus Sunday, Dec. 21, 2003. (AP Photo/Nasser Ishtayeh)