A spontaneous strike by SAS Ground Holding grounded all of the airline's flights from Copenhagen Airport for a few hours on Thursday, The Local Denmark reported.
Baggage workers suddenly stopped working at 6:30pm.
"All of the bags are just sitting outside," a stranded passenger told The Local.
SAS Ground Handling, the largest aircraft ground handling company in Scandinavia, serves more than 30 Scandinavian airports. SAS headquarters are located at Arlanda Airport in Stockholm.
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The strike was reportedly a result of SAS leadership laying off 900 baggage handlers in order to force new negotiations on a local level. Shortly before 10pm the strike was called off, as suddenly as it began.