![People queue at UK border control at Heathrow Airport. Border Force staff are due to strike for three days at the end of May. Getty Images](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/BUTKLKBFP5FY5GTFHAPF4CB62M.jpg?focal=1192%2C389&auth=feb78caed4dc7b0a4e06120d71198d3b03486c8cfc5a24ef436ba4430ff18e32&width=400&height=225)
People queue at UK border control at Heathrow Airport. Border Force staff are due to strike for three days at the end of May. Getty Images
People queue at UK border control at Heathrow Airport. Border Force staff are due to strike for three days at the end of May. Getty Images
Passengers to be hit by further strike action at Heathrow
As UK Border Force employees prepare for a three-day walkout, Heathrow says it is working to mitigate any disruption to passengers