A woman was taken to hospital with a broken jaw after a man tried to rob her in Halifax town centre this morning.
The victim was in Old Cock Yard outside the post office at 12.30am when she was attacked.
The culprit tried to take her money but she managed to fight him off.
Police quickly arrested a man who was being questioned this morning.
Anyone who was in the area at the time or has information that could help police should call Calderdale CID on 01422 337085 or 101.