The Chief Constable of Wiltshire Police has said the force has enough to deal with after officers were forced to chase a naked couple through the streets of Salisbury.

A man in his 20s and a woman in her 40s were caught having sex in public on Friday night in the city where former Russian double agent Sergei Skripal was poisoned with a nerve agent.

Officers chased the pair through Salisbury, and the episode prompted Kier Pritchard, Wiltshire Police's top officer, to address the act of indecency on Twitter.

Sharing a link to a local paper's story about the incident, he said: "There’s something in the air in Salisbury... something that shouldn’t be seen in public.

"Behave this summer, we’ve already got enough to deal with."

The couple were spotted in a field across the river from Queen Elizabeth Gardens - a park which was closed off and combed for evidence by specialist officers during in the aftermath of the Skripals' attack.

Officers tracked them down to an address in Essex Square - more than a mile away from the location of their encounter.