Afghan police are investigating a rocket strike on a wedding party that killed at least 28 people, many of them women and children.
The deputy police chief of Helmand province, Bacha Gull, said the rocket appeared to have been fired from an army checkpoint near the house in Sangin district as guests waited for the bride to arrive.
Mr Gull said police are "keeping an eye" on two army checkpoints to determine whether the soldiers manning them were engaged in a firefight with Taliban insurgents at the time or whether they fired the rockets arbitrarily.
Mr Gull said the strike wounded 51 people.
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Sangin, in the poppy-producing Helmand River valley, has been the scene of fighting between government forces and Taliban for the past six months.
AP