On Thursday, 12 September, three men and two women - aged between their 20s and 50s - were arrested on suspicion of conspiracy to commit a public nuisance in relation to operations at Heathrow Airport on Friday, 13 September.
Two men were arrested on Pritchard’s Road, Bethnal Green, E2.
Two women and one man were arrested on Hornsey Lane, N6.
They have been taken to a London police station.
Deputy Assistant Commissioner Laurence Taylor, said: "We have carried out these arrests today in response to proposed plans for illegal drone use near Heathrow Airport which protest group Heathrow Pause have said will take place tomorrow morning.
"Our policing plan is aimed at preventing criminal activity which poses a significant safety and security risk to the airport, and the thousands of passengers that will be using it. We have warned previously that arrests would be made if this activity continued.
"In these circumstances, we believe these arrests to be a proportionate response to preventing criminal activity that could significantly impact on a major piece of national infrastructure.
"We remain fully prepared for the planned protest tomorrow, and will work quickly to identify criminal activity and arrest anyone committing offences."