An "abusive" man is going door to door trying to sell wares to homeowners and shouting at those who do not make a purchase, according to police.

Thames Valley Police have warned residents not to engage with the man and to call 999 if threated.

Reports suggest he knocks on a door and, wearing an earpiece, claims he is struggling to find work.

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When a Longwick resident asked him for ID on Monday, he presented them with a false one and became abusive when challenged, according to police.

After talking to his colleague through the earpiece, he returned to the door and shouted at the resident, they said.

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He is described as a white 5ft 10 man, aged in his 40s or 50s, with black hair and a navy or black jacket.

The ID card hangs on a lanyard around his neck.