Two passengers have been arrested on a cross-border train between Germany and Switzerland.
German police say the pair, a 29-year-old woman and a 35-year-old man, were found engaging in sexual activity in a first-class carriage by Swiss Federal Railways staff.
They were asked to stop and later removed from the train near Basel.
Authorities say the situation escalated on the platform, where the couple allegedly assaulted SBB employees, leaving two staff members with facial injuries.
Both suspects were taken into custody, and an investigation into assault is now underway.
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