The Voice of America News website reports that a Yemeni militant group -- affiliated with al-Qaida -- says it shot and killed an American teacher in southern Yemen today (March 18, 2012) for preaching Christianity.
Militants riding a motorcycle shot the man in his car in the southern city of Taiz, because they believed he was a Christian missionary.
Yemeni officials say the American had been working at a European-run language institute.
Authorities launched an investigation to find the perpetrators of the attack.