Watch: Firefighters tackle mobile phone mast blaze
Video showed the top of a 5G mobile phone mast engulfed in flames after a suspected arson attack.
Fire crews were called to the junction of Saxon Street and Dexter Avenue in Oldbrook, Milton Keynes just before 20:30 BST on Tuesday.
Thames Valley Police evacuated nearby homes, and a cordon was put in place while the area was made safe.
Detectives are trying to identify a man who was seen in the area.
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