Emergency services attend 'major' incident in Northampton
A fire engine, more than five police cars, a rapid response vehicle and a riot van were on the scene in West Cotton Close at about 7.30pm, according to on-lookers.
One witness said police used a red cordon around some ground floor flats in the street and refused to tell of any information but requested that people needed to stay indoors.
It is understood that it was an isolated incident involving one individual and that there was no threat to the wider public.
Northamptonshire Police have been approached for comment.