A woman has been suspended over claims that mobile phone clips of her having sex were seen by hundreds of colleagues.
The clips were said to have been downloaded to a mobile
The Swansea-based Driver and Vehicle Licensing Agency (DVLA) worker was said to have downloaded clips to her mobile phone and sent the footage to friends.
Within hours, the clips were said to have been sent to 300 fellow workers.
The DVLA said a "junior employee" was suspended amid an inquiry into "alleged circulation of unacceptable material."
The woman, reported to be in her twenties, has been told to stay at home until the investigation is completed.
More than 6,000 people work for the DVLA, most of them based in a 20-storey building in the Morriston area of Swansea.
Many are said to have viewed the clips by the time managers stepped in.
"Nobody could quite believe what they were seeing," the South Wales Evening Post quoted one worker.
"The pictures appeared to show her and her partner making love," the anonymous worker told the newspaper.
"They went from one camera phone to the next. I think at least 300 or so people had it on their mobile phones by the time it was stopped.
"Everyone was passing on the pictures."
A DVLA spokeswoman said: "A junior DVLA employee is currently under suspension pending the outcome of an internal investigation into the alleged circulation of unacceptable material."
The centre processes driving licences for the UK and is one of the biggest employers in the region.