Novichok poisoning: 'Unusual and increased activity' at Russian embassy in London around Salisbury a

“Frantic and unprecedented” movement around the Russian embassy in London was monitored by intelligence agencies around the Salisbury attack, it has emerged.

MI5, MI6 and GCHQ reportedly investigated “unusual” activity in the days before and after Sergei and Yulia Skripal were poisoned with novichok a year ago.

A security source told the Press Association: “The intelligence agencies have been investigating unusual and increased activity at the Russian embassy in Kensington in the days leading up to and after the attack on the Skripals.”

The source, who has knowledge of the investigation, said lines of inquiry included looking at "frantic and unprecedented” movements observed at the time, adding: “As would be expected, the UK security services have eyes on known and undeclared foreign intelligence operatives.”

In the wake of the attack, which took place in Salisbury on 4 March 2018, the observations were “deemed to be significant and of interest”, it is understood.

https://www.independent.co.uk/news/uk/home-news/salisbury-novichok-attack-sergei-skripal-russian-embassy-putin-a8806751.html