A group of ground staff at Frankfurt Airport is initiating a new three-day strike amid an ongoing pay dispute. The GdF union called the strike from 9 p.m. Sunday (2000 GMT; 3 p.m. EST) until 5 a.m. Thursday (0400 GMT; 11 p.m. EST Wednesday), following the collapse of the latest negotiations. This comes after a three-day strike last week at Europe’s third-busiest airport. Airport operator Fraport states that it managed to keep more than 80 percent of flights operational last week and anticipates doing the same this time as well. Nonetheless, German news agency dapd reported that Lufthansa canceled approximately 140 flights for Monday. Fraport has criticized the GdF union's demands for double-digit wage increases for around 200 workers responsible for overseeing operations on the tarmac. The union asserts that it merely seeks to align Frankfurt salaries with those of other airports.