A man disguised as an elderly woman in a wheelchair has thrown cake at the Mona Lisa, Leonardo da Vinci’s famous painting at the Louvre in Paris, the BBC reports.
The piece, which was undamaged, was left with white cream smeared across its protective glass.
The perpetrator, seen wearing a wig and lipstick, urged people to “think of the Earth” while being led from the scene.
The incident on Sunday was described by witnesses as being “jaw-dropping.”
The activist, who was also seen throwing roses in the gallery, was escorted out by security. “Think of the Earth,” he declared.
“There are people who are destroying the Earth. Think about it. Artists tell you: think of the Earth. That’s why I did this.”
A 36-year-old man was detained and sent to a police psychiatric unit, the Paris prosecutor’s office confirmed on Monday, adding it had started an investigation into the damage of cultural artefacts.
The Renaissance painting had glass installed in the 1950s to protect it after an acid attack.