A suicide attack in front of a mosque in southwestern Afghanistan killed 24 people and wounded more than 30 others, a provincial governor said Friday. The attack took place Thursday as men were getting ready for the evening prayer at the central mosque in Zaranj, the capital of Nimroz province, Gov. Ghulam Dastagir Azad said. Azad said there may have been more than one bomber. "I'm not sure if it was single attack or a double attack," he said, noting that a district police chief and border reserve police commander were among the dead. Most of those killed and wounded were civilians, including children and old men, Azad said.