A man and a woman have been found dead at a hotel, with concerns of a "substance" found at the scene.

Police were called at 12:43pm today (July 1) after two people were found unresponsive at a hotel in Mercury Gardens, Romford. 

A man and a woman were pronounced dead at the scene, police said.

Officers attended along with the London Ambulance Service and the London Fire Brigade.

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The deaths are being treated as unexpected and further enquiries are taking place to establish the circumstances, police said.

Specialist officers also attended due to concerns about a substance that was found at the scene.