Updated

An Afghan official says two prisoners and a child were killed during an attempted prison break in southern Afghanistan.

The chief of police for Zabul province in southeastern Afghanistan, Ghulam Saki Roghlewanai, says some explosives had been placed earlier near a prison wall. He says the explosion Sunday was triggered by a child although it wasn't clear whether the child did it intentionally.

The police official says after the explosion two Taliban prisoners inside tried to grab the weapons of the police guards.

He says the police managed to shoot and kill the two Taliban prisoners. He says two officers were also wounded in the incident.

The militants have staged some elaborate prison breaks to free their comrades, including a 2011 incident in Kandahar that freed more than 400 inmates.