French broadcaster BFMTV acquired a video which purports to show thieves during their heist of priceless jewels from the Louvre's Apollo Gallery.

The amateur footage was replayed for BFMTV who filmed that phone's screen and verified it on Sunday.

BFMTV says it shows a person in the Apollo Gallery on Sunday morning wearing a yellow jacket and standing by a glass case.

The Associated Press is unable to independently verify the footage.

On Sunday, thieves rode a basket lift up the Louvre’s facade, forced a window, smashed display cases and fled with priceless Napoleonic jewels, officials said.

The theft occurred about 30 minutes after the museum opened, with visitors already inside, and was among the highest-profile museum thefts in living memory.

It unfolded just 250 meters (270 yards) from the Mona Lisa, in what Culture Minister Rachida Dati described as a professional operation that lasted just a few minutes.

The Louvre remained closed Monday.