Police have cordoned off All Saints Church and erected a tent over a number of graves.
Detectives believe one of them is connected to the disappearance of Jayden Parkinson, 17, who police believe has been murdered.
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A 25-year-old man has been arrested in Newport, South Wales, in connection with the Parsons Green terror attack, Scotland Yard said.
A milder night ahead with some cloud low enough to be misty in places.
Tata Steel and Thyssen Krupp will formally announce the merger of their European steel operations on Wednesday, ITV News understands.