Police officers have been seen heading into woods in Headington, Oxford. A number of Thames Valley Police cars have been spotted in the area. A local said: "I've heard lots of sirens. I want to know if I am safe, as I live only a few minutes from there." Another resident who lives locally saw blue lights and police tape "everywhere" in the area earlier today, and emergency service vehicles have been present for several hours, the Oxford Mail reports.

The Express has contacted Thames Valley Police for information.

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