Security guards at Heathrow Airport have launched a three-day strike ahead of the busiest day in air travel in several years.
Members of Unite have already held 15 days of industrial action, including over the busy Easter period, and now they're walking out again in a dispute over pay and conditions.
While previous strike days have not always had a huge impact on the west London travel hub, the situation could be different on Friday, which is expected to be the busiest day for UK departures since before the coronavirus pandemic.
