Unprecedented activity at Russian embassy before Novichok attack
Intelligence services are understood to have investigated increased and unusual activity at the Russian embassy in London in the days before and after the Novichok poisoning.
MI5, MI6 and GCHQ looked into frantic comings and goings at the building in Kensington in the days leading up to the moment former Russian spy Sergei Skripal and his daughter Yulia came into contact with the nerve agent and after they were found unconscious, according to a source.
In the wake of the attack, which took place in Salisbury a year ago on Monday, the observations were deemed to be significant and of interest, it is understood.
A security source told the Press Association: The intelligence agencies have been investigating unusual and increased activity at the Russian embassy in Kens...