Car fires continue to plague a Bicester housing estate.
Following a string of arson attacks in the autumn, police stepped up patrols on the King's End side of the town.
Insp Ian Edwards, who is in charge of Bicester police, said: "We are still patrolling and mounting operations in King's End.
There were car fires in Church Street and Crumps Butts, off Sheep Street, this week, but we do not know if they were connected to other incidents."
Anyone with information should call CrimeStoppers on 0800 555111.
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