Emergency crews were called to Albert Street in Chilton, County Durham, at around 12.30pm on Sunday (September 28) after a man in his forties suffered a knife wound to his back, Durham Police said. A 45-year-old man was arrested in connection with the incident and taken into police custody for questioning, where he remains. Pictures from the scene later on Sunday show officers wearing globes entering a terraced house on the street. Police and CSI teams on Albert Street, Chilton(Image: NORTHERN ECHO)Two police vans, one from the CSI unit, were seen parked outside, with officers seen putting an evidence box into one of the vans. A police officer entering a property on Albert Street, Chilton(Image: NORTHERN ECHO)A police presence in Chilton(Image: NORTHERN ECHO)A Durham police spokesperson said: "An investigation has been launched and officers will remain in the area while further enquiries are carried out."