Man dressed as old woman throws cake at Mona Lisa
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 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".
View original tweet on Twitter
Louvre visitor Luke Sundberg, from the US, saw it all unfold. "The crowd begin gasping and we looked up and some man in a wheelchair [dressed] as an old lady ran up to the painting and started punching it before smearing cake all over it," the 20-year-old told the PA news agency.
"It took about 10 to 15 seconds for the security to actually take the man away, but the crowd seemed to panic a little bit.
"It was jaw-dropping, it was a lot to take in considering how historic Mona Lisa is... the moment was once in a million."
'Think of the earth'
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.
A video from Mr Sundberg showed onlookers breaking into applause after the cream was cleaned from the glass.
Fellow museum visitor, Klevis, 26, from Albania questioned: "What were the odds this would happen?"
The BBC has contacted the Louvre for comment.
Your monies have been put to good use – Appiatse support fund c'ttee06:19
Water Resources C’ssion calls for attitudinal change in protecting water bodies10:38
Anti-gay bill 'not an official gov't legislation'; it's being pushed by a 'handful' of MPs – Akufo-Addo tells US Vice President09:57
Rawlings would've dared us to swear by Antoa – Zenator on Akufo-Addo nominees' vote11:17
I’m not proud being NDC MP at this time – Sam George10:36
UE/R: 2 basic school pupils quarantined over COVID-19 infection06:11
Former Gender Minister files nomination to contest NDC primaries in Adentan10:07
Speaker crowned chief of Awudome10:07
Have a pleasant and fruitful stay in Ghana – Bawumia to Kamala Harris11:19
GA/R: Deputy NYA boss donates tablets to pupils10:38