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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The founder of a free school and two ex-staff members have been jailed for defrauding the Department for Education of thousands of pounds.
Pino Pagliara told ITV News a lucrative salary meant he told undercover reporters posing as football investors "what they wanted to hear".
She was best known for playing Ethel Meaker in the children's show Rentaghost and Grandma on stage in Billy Elliot the musical.