A large number of Police Units, Armed Officers and the Dog Section are currently involved in an active policing operation in the West View Area of Hartlepool.
Bruce Crescent, Hartlepool was quickly sealed off by armed officers.
The section which was sealed off was near an area called the common.
Officers searched back gardens of the properties within a grove within Bruce Crescent.
A large number of officers are conducting wider area searches while the Police Helicopter is above.