(AP) -- British police say they're dealing with an incident on London Bridge, and witnesses have reported hearing gunshots.

The Metropolitan Police force says several people have been stabbed close to London Bridge, and a man has been detained. 

Police say officers were called Friday afternoon ``to a stabbing at premises near to London Bridge.''    They say ``a man has been detained by police. We believe a number of people have been injured.''    The news comes after witnesses reported hearing gunshots. 

Police say that though the circumstances of an incident on London Bridge remain unclear, authorities are treating it as if it is terror-related.

The police acknowledged one man had been shot in the incident that began at 1:58 p.m. on Friday.