An incident in which police fired a rubber bullet to end an hour-long siege on Teesside has been been referred to the Independent Police Complaints Commission.
Officers were called to a house in Durnford Road, Middlesbrough, shortly before 10.30pm last night, where a man reportedly claimed to have a gun.
Cleveland Police said that officers, including some who were armed, sealed off the area.
A spokeswoman said: "In response to the man's actions, a baton round was discharged by police shortly after 11.30pm.
"The man, who was inside the address, was taken to hospital for treatment. His injuries are not believed to be life-threatening at this stage.
"No-one else was in the address at the time of the incident and no-one else was injured."
A 46-year-old man has been arrested in connection with the incident and will be questioned.
The matter was referred to the IPCC in line with national procedures.