Four men, one with a sawn-off shotgun, have raided a supermarket and held 13 staff members hostage.
The balaclava-clad men were waiting at the Co-op store in Chipping Norton, Oxfordshire, and took their first victim hostage at about 0500 GMT.
They hid inside as other staff members - nine women and three men - arrived, and held them at gunpoint too.
They stole cash from a safe after forcing a woman to unlock it and then fled on two motorbikes towards Banbury.
The staff called police at about 0650 GMT.
One victim, in his 40s, suffered a minor head injury and was taken to the Horton General Hospital in Banbury for treatment.
Police want to speak to anyone who may have seen the men before the raid, or seen the bikes been driven away at speed.
That sort of thing just doesn't happen here. It's going to be talked about for years.