A "burka-clad" man has been arrested over a bomb scare that saw a suspicious device blown up by the army in Watford town centre.
A large part of the centre of the London commuter belt town was evacuated. Army bomb disposal experts and a bomb disposal robot were called to the scene.
Office workers were told to stay indoors as police closed off Market Street and Watford High Street, while people in the area were ordered to take refuge in a nearby church.
Hertfordshire Constabulary said army bomb disposal workers had "safely destroyed" the device.
Pictures tweeted from the scene showed a man who appeared to be white, wearing a full length burka, being led away flanked by two police officers in nearby Clarendon Road.