Police have surrounded a house in West Yorkshire after an officer was shot.
Several shots were fired in the incident in the Kirkheaton area of Huddersfield on Monday evening.
The officer has been taken to hospital for a check up and his injuries are not believed to be serious.
Assistant Chief Constable John Parkinson said officers have laid siege to the property and are attempting to talk to the gunman while appealing for him to give himself up.
Senior police officers said the position of the building meant they did not believe other residents in the area were at risk.
The gunman is believed to be alone.
Police went to the house at about 2200 GMT to arrest a man in connection with an earlier incident.
When he saw the officers he produced a handgun and opened fire, hitting one of them.
West Yorkshire Police said the 42-year-old gunman has continued to fire shots but police have not returned fire.
A police spokesman said: “The man produced a gun and fired at the officers. A male officer in his 20s was hit and attended hospital for minor injuries.
“Armed officers have now surrounded the premises and are trying to resolve the situation peacefully although shots have continually been fired at the officers.”
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