COPS are urging guests who stayed at the same London hotel as the Russian spy suspects to get in touch after finding traces of deadly nerve agent Novichok.
Alexander Petrov and Ruslan Boshirov stayed in the City Stay Hotel in Bow, East London, before going to Salisbury where it's claimed they carried out the attack on Sergei Skripal and his daughter Yulia.
The Metropolitan Police confirmed today traces of Novichok were found in the two-star hotel after being tested at Porton Down in May - but reassured there was no threat to public health.
They have now urged guests who were at the hotel between March 4 and May 4 to contact them on a special hotline.
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Assistant Commissioner Neil Basu, National Lead for Counter Terrorism Policing, said: "Tests were carried out in the hotel room where the suspects had stayed.
"Two swabs showed contamination of Novichok at levels below that which would cause concern for public health."
He continued: "In terms of those who stayed in the room between 4 March and 4 May; to-date, we have had no reports of any persons falling ill.
"We are asking anyone who stayed at the hotel between 4 March and 4 May to call 0800 789 321 or email [email protected]. Staff from PHE will be on hand to give advice and reassurance."
A chilling timeline released by cops shows Petrov and Boshirov travelled to London on March 2 before making their way to the £48-a-night hotel in Bow.
They stayed there for two nights and then went to Salisbury for reconnaissance before returning to the City Stay Hotel for the night.
The next day, the suspects travelled to Salisbury again, where they smeared Novichok on Sergei's door and later fled the country.
The City Stay Hotel has been described as a "no-frills budget hotel" with "simple, modern rooms".
The Skripals were saved thanks to the expert work of British doctors - with Yulia making a full recovery just weeks later.
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