Tests on 'white substance'

Police believe the substance may be from a fire extinguisher

Tests are being carried out on a white substance which was apparently pushed through the letterbox of a Muslim community centre, sparking a chemical alert.

Regent Grove in Leamington Spa was closed on Sunday after the supposed chemical was found at the Ahmadiyya Muslim Community Centre.

Warwickshire Police believe the substance may be from a fire extinguisher but are waiting for confirmation.

Fifteen people from the mosque were kept in quarantine behind police lines for four hours.

More than 20 firefighters were called out to street just before 1300 BST following the discovery.

Fire crews wearing full chemical protection suits attended the scene.

Ambulance, police and an environmental protection unit has also been called to the scene.