Emergency services scrambled to a scene as a man was later arrested for assault and false imprisonment.
Police received a report of a domestic-related incident at an address on Handfield Road in Waterloo. Officers attended and arrested a 44-year-old man from Waterloo on suspicion of assault and false imprisonment.
Eyewitnesses reportedly said there were a number of fire engines and police on South Road in Waterloo, which is near Handfield Road, and around three roads were blocked off.