Thames Valley Police have appealed for anyone with information about the disappearance of teenager Jayden Parkinson who disappeared on 3rd December.
Detectives are especially keep to trace a man who was seen in the area with a large suitcase. Police said they have examined a number of suitcase already, but are still keen for anyone who may have seen the man to come forward.
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The 10K and half-marathon races take place almost exactly a year after Salman Abedi killed 22 in his attack at an Ariana Grande concert.
Dmitrios Pagourtzis also had several kinds of homemade explosive devices but they were not capable of detonating, county officials said.
After early mist clears, most parts of England and Wales will have another fine, warm day with plenty of sunshine.