An area of Northampton was searched after a man was threatened in his home.
A number of people contacted the Chronicle & Echo after they saw the police helicopter and a number of police cars in Hood Street, The Mounts, shortly before 9pm on Monday night.
A police spokesman said today officers were searching the area for a man after a report stating a man had been threatened in his home.
The spokesman said: “Officers attended and conducted a search of the area. Investigations into what happened are continuing and police would like to speak to anyone who may have witnessed any suspicious activity in the area on Monday evening.”
Witnesses or anyone with information can contact police on 101 or Crimestoppers anonymously on 0800 111 555.