The driver racially abused the children before spitting out of the window at them and driving off, Scotland Yard said. The victims called police but then made their way home.

Detectives from Hackney borough's Community Safety Unit are investigating and the incident is being treated as a hate crime.

Detective Constable David Leitner of Hackney's Community Safety Unit said: "This was a shocking incident that has left the victims extremely shaken - the fact that this racial abuse was directed at children makes the offence all the more abhorrent.

"I am appealing to anyone who was in the area at the time of the incident and witnessed the incident to contact police.

"I would also ask people who saw a car, described as a white Volvo saloon, driving in the vicinity of Clissold Park to get in touch - you may hold a vital bit of evidence that could assist us in identifying the person responsible.