HUNDREDS of Border Force officers at Heathrow airport will launch a four-day strike today in a dispute over working conditions.

PCS union said more than 300 of its members will strike from 5am on until 7am on Friday.

The union said the workers, based at Heathrow’s terminals two, three, four and five, are taking action in protest at plans to introduce new rosters they say would see about 250 of them forced out of their jobs at passport control.