Hamas and Fatah gunmen exchanged fire Wednesday in the West Bank city of Nablus, after Fatah gunmen tried to storm a pro-Hamas TV production company. The incident began when gunmen from the Al Aksa Martyrs' Brigades, a violent Fatah offshoot, tried to seize employees of the production company. Hamas gunmen rushed to the scene, and a firefight erupted. Al Aksa leaders said the attack on the TV company came in retalation for Hamas attacks on positions of Fatah-allied security forces in Gaza. There were no immediate reports of injuries.