(CNN) — London's Heathrow Airport is facing "major disruption" as 350 ground handlers are set to begin a three-day strike over pay on Friday, the Unite union said Thursday.
The 350 union members, who Unite said were employed by aviation firm Menzies, will begin a 72-hour strike at 4.00 a.m. local time on November 18, according to a press release.
The press release said the strike at Britain's busiest airport would "lead to disruption, delays and cancellation for flights leaving Heathrow Terminals 2, 3 and 4."