A man is his 50s is receiving hospital treatment after police were called to a house on the outskirts of Norwich.
Officers were called to Rosalie Close in Hellesdon at about 12.20pm after a neighbour raised concerns about a man in distress.
The man was aggressive towards officers and was seen to be holding a kitchen knife, resulting in armed units attending the scene.
Police had to force their way in and the man was tasered and restrained, allowing paramedics to treat him. He was detained and taken to hospital for treatment.