Heathrow Airport has said it is "working with the authorities" to deal with the threat of protests which could disrupt flights over the Easter weekend.

The statement came amid speculation that Extinction Rebellion activists would "shut down Heathrow".

Sajid Javid said more than 1,000 police officers a day have been deployed to deal with the demonstrations in the capital as he urged police to use the "full force of the law".

The Home Secretary condemned activists who are breaking the law as organisers threatened to escalate the group's tactics if their demands are not met.

Scotland Yard has arrested at least 428 protesters amid ongoing demonstrations across four locations in central London, comprising Waterloo Bridge, Marble Arch, Oxford Circus and Parliament Square.