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Officers allegedly boarded "without reason" shortly after landing at London Heathrow Airport at 3:37 pm on Friday.
Shortly after landing, the police "persistently called for " passengers and crew members to leave but the pilots refused, according to several reports from Russia.
"After the passengers had left the plane, the police suddenly demanded that the crew leave the plane to carry out an inspection in the absence of the crew," a source from the Russian news agency Interfax said.
Scotland Yard has denied his officers to search the plane.
A spokeswoman told Daily Star Online: "I've talked to our control room in London Heathrow and confirmed that it's not our strength."
The Federal Foreign Office told the BBC that Border Force Officals went aboard the flight and Aeroflot " was prepared to cooperate with British authorities when an explanation was given".
In a statement on Twitter, the police wrote: "We are I am aware that a story is circulating on social media Please note that the Metropolitan Police does not conduct a search for an Airbus from Moscow to Heathrow.
But a Aeroflot source has confirmed a plane was searched at Heathrow, Tom Parfitt, Moscow correspondent for the Times, tweeted.
According to reports, representatives of the Russian Embassy were sent to the scene.
A Russian official entered "long negotiations" to "secure the captain's right to participate in the search".
Parfitt wrote: " Aeroflot confirms that an airplane is being inspected at Heathrow The Russian Embassy in London says it sends representatives to the scene The Russian Foreign Ministry says it is" inadmissible, dangerously irresponsible " and "provocation" from the UK to save the reputation of the Skripal Affair.
The Russian Embassy in the UK has demanded an explanation for the "enemy" search.
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British police "did not explain the reasons" why they searched the plane and crew, the source said Interfax.
As she insisted on inspecting the "entire crew," the pilots protested, saying it was prohibited by the current rules added the source.
Piers Scholfield, foreign news producer for the BBC, tweeted: "FCO has said customs officers boarded a plane in London."
BBC journalist Ben Tavener added, "UK
# Aircraft search in Russia: The British Foreign Office confirms that BBC that this afternoon the customs control of de n Aeroflot flight at Heathrow checks with British authorities if an explanation is given.
But a spokesperson for the Department of Foreign Affairs referred Daily Star Online to the Home Office and said, "We have no information about that."
Daily Star Online has turned to the Interior Ministry for comment.
Moscow called the incident "another provocation" amidst simmering tensions over the aggression on a former Russian spy.
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, said: "The British authorities asked the Russian crew, including the captain, to leave the plane.
"The commander of the aircraft proposed to carry out the inspection in his presence, as he is forbidden to leave the aircraft according to the regulations.
" At the moment the police continue the search without the To release commanders from the cabin and to prevent him from being present at the inspection.
The extraordinary incident comes after former KGB agent Sergei Skripal and his daughter Yulia were exposed to deadly chemicals on March 4 in Salisbury.
Russia issued 59 diplomats on Friday 23 countries annoyed, as the confrontation with the West on the Novichok attack worsened.
Defector Alexander Litvinenko was notoriously poisoned by radioactive polonium in London
The Kremlin rejects Britain's accusation that the attack personally called Russian President Vladimir Putin "nonsense" and "driven".
In a statement, the NHS said that Yulia Skripal, 33, is in a critical condition after three weeks due to the neurotoxin attack.
Her father, who handed over Russian secrets to M16 and moved to Britain in a spy exchange remains in critical but stable condition.
The BBC, citing sources on Friday, reported that Yulia "was conscious and conversing".