A 20-year-old man, described by the force as “white British”, has been arrested on suspicion of being concerned in the supply of Class A drugs.
Det Supt Joe Harrop, from the GMP Serious Crime Division, said: “We know people in the area will be concerned by what has happened and the visible increase in police officers in the local area as our investigations continue.
“Thankfully no members of the wider public or officers were harmed in the incident this afternoon and we thank people for their patience while we remain at the scene.
“Should anyone have any concerns, please speak with our officers who are out in the local area – they are there to listen and assist where possible.”
The incident been referred to Independent Office for Police Conduct as per standard procedure.
