KABUL, Afghanistan (AP) - An explosion went off Friday among Shiite Muslim worshippers at a mosque in northern Afghanistan, killing or wounding at least 100 people, a Taliban police official said.There was no immediate claim of responsibility for the blast, which took place in Kunduz, the capital of Kunduz province, but militants from the Islamic State group have a long history of attacking Afghanistan’s Shiite Muslim minority.Dost Mohammad Obaida, the deputy police chief for Kunduz province, said that the "majority of them have been killed." He said the attack may have been carried out by a suicide bomber who mingled among the worshipers.RELATED: Afghanistan and the Taliban: From 9/11 to today"I assure our Shiite brothers that the Taliban.