A witness who posted a video of the aftermath on Twitter said the man had “dressed as an old lady” and jumped out of a wheelchair before attempting to smash the glass.
The witness said the unidentified man smeared the pastry, which the witness identified as cake, before throwing roses around the room. He was then tackled by security guards, the witness said.
The Louvre said in a statement that officials with the museum had followed its usual procedures for people with reduced mobility, “allowing them to admire this major work of the Louvre.”
Once he was near the painting, the man threw the pastry that he had hidden, the museum said.
Security guards seized the man and escorted him out before handing him over to the police, the museum said. The museum filed a complaint, officials said.
There have been several attempts to vandalize the painting, some more successful than others. In 1956, a man threw a stone at the painting, shattering a glass shield and scratching Mona Lisa’s left elbow, causing a chip of paint to fall off.