ET has the latest...

NAOMI CAMPBELL's rep tells ET that the supermodel was forcibly ejected by police from her flight at London's Heathrow Airport on Thursday after a baggage dispute.

Campbell's rep says that Naomi checked in two bags, but once aboard the British Airways flight, she was told that one of those bags had gone missing. According to the rep, this led to airline officials asking her to leave the plane, and then they summoned police to have her removed -- after which, the rep says, she was taken to the Heathrow Police Station and released on police bail.

"So far as we are aware, British Airways [officials] have still failed to offer any explanation as to why her bag went missing at Terminal 5," Campbell's rep tells us.

ET spoke with Scotland Yard and while not confirming the news about Campbell -- saying they do not release names or mugshots -- they did tell us that around 5:15 p.m. local London time today, police were alerted to a disturbance at Terminal 5 at Heathrow airport. A 37-year-old woman was arrested for allegedly assaulting a police officer.

Last year Campbell was ordered to attend anger management classes and complete community service after she allegedly threw her cell phone at her housekeeper.