Passengers at a Danish train station were left out in the cold when a couple began having sex in the waiting room, according to police.

"We don't know if it's due to the glacial weather this morning or to unbridled passion, but a couple did not hesitate in having sexual relations in a waiting room at the Koge train station," just south of Copenhagen, police spokesman Carsten Andersen said.

Freezing passengers had called the DSB rail company to complain that while they were stuck out in the cold, a 37-year-old man and a 30-year-old woman had steamy sex inside.