Spy poisoning fallout: UK told to pick up more diplomatic staff from Russia
Russian Foreign Ministry spokeswoman Maria Zakharova told CNN on Saturday that they were working on their diplomatic missions.
Russian Federation diplomats in support of Britain, which blames Moscow for.
More than 25 countries announced this week the March 4 nerve agent attack against Sergei Skripal and his daughter, Yulia, in the southern English city of Salisbury. Russia denies involvement.
So, Saturday, Russia's Ministry of Transport said it planned to ask the UK for what it called a Moscow-bound Aeroflot scheduled for Friday at London's Heathrow Airport.
On its website, the ministry said, "In the absence of an explanation, the Russian side wants to take action against our aircraft as illegal, and thus reserves the possibility of similar actions against British air carriers."
The UK Security Minister said the search was "routine."
"It's routine for the Border Force to search aircraft to protect the UK from (organized) crime and from those who attempt to bring harmful substances like drugs or firearms into the country, spokesman Ben Wallace said in a statement to CNN.
The UK is thus considering Russia's request for consular access to Yulia Skripal, whose condition has been poisoned by the Novichok nerve agent in Salisbury.
On behalf of and with Yulia Skripal, "A spokeswoman for the UK's Foreign and Commonwealth Office said Saturday.
On Friday, the Russian Embassy in London tweeted, "Good news as Yulia Skripal is reported as recovering well."
CNN's Emma Burrows reported from Moscow, and Hilary Clarke wrote in London. CNN's Matthew Chance and Lauren Kent contributed to this report.