An explosion hit a NATO patrol in southern Afghanistan on Tuesday, killing one soldier and wounding another, the alliance said. The troops were patrolling in Ghazni province, NATO's International Security Assistance Force said in a statement. No details were given about the explosion or the troops' nationalities. In the western province of Herat, Taliban militants attacked a checkpoint Monday in Shindand district, killing two police officers and wounding another, said Rauf Ahmadi, spokesman for the western region police. Also in Shindand, eight people were killed Tuesday morning during a six-hour gunbattle between two tribes, Ahmadi said.