This New York Times article has lots of quality information on the prison revolt near Mazar-i-Sharif, which apparently is still ongoing. You’d think that the Afghans would disarm their prisoners, but apparently a lot of them managed to smuggle weapons into the prison. The article also clears the air about the reported massacre of Taliban soldiers in a school in Mazar-i-Sharif. I quote:
When the Northern Alliance conquered Mazar earlier this month for their first big victory of the war, more 300 Taliban fighters died in the fighting, and 250 were taken prisoner, according to the International Committee of the Red Cross and the Afghan Red Crescent. There was talk of a massacre of the Taliban as the town fell, but in later interviews Taliban fighters taken prisoner, and the commander of the Northern Alliance whose forces surrounded the compound, said they died not in a massacre, but more in chaotic combat for the town.