Police have now lifted a cordon in Salisbury town centre erected after a man was believed to be taken ill near the Zizzi restaurant that Sergei and Yulia Skripal visited before they became ill due to Novichok exposure.

Wiltshire emergency services were called to the area over concern for the welfare of a man in his thirties, but have since confirmed there is no concern for the man's health or any wider risk to the public.

Ambulance and fire crews attended Castle Street in the town after police confirmed they were taking precautionary measures.

The incident briefly sparked concern that another person had fallen victim to the Novichok nerve agent following the exposure of two individuals in Amesbury last week.

Wiltshire police later tweeted: "We understand that our initial response to the incident may have looked alarming, but we hope you appreciate why we needed to take this highly precautionary measure. We thank you all for your patience and understanding.