Police have sealed off a street in York.
A patrol car is blocking the entrance to Carrnock Close, a small street off Geldof Road in Huntington, York
Firefighters and an ambulance are also at the scene.
North Yorkshire Police said officers attended a property in the close on Thursday morning (September 8). A 27-year-old man was arrested at 10am on suspicion of intending to supply a class A drug, and being concerned in the production of a class A drug.
The force spokesperson said:
As a precaution, specialist personnel have attended to test suspected drugs and secure the scene.
Members of the public are asked to avoid the area while the emergency services work at the site. There is no identified risk to the wider public.