9/11 truther defaces Delacroix painting 'Liberty Leading the People' A file picture of the Eugene Delacroix masterpiece Liberty leading the people at the Louvre-Lens Museum in Lens, which was vandalised by a mentally unstable woman this week. FRENCH police were holding a mentally "unbalanced" woman after an attack on one of France's most iconic paintings, Delacroix's 'Liberty Leading the People'. Prosecutors in the town said that after having received a psychiatric report on the 28-year-old woman, they would probably have her committed on Saturday (yesterday). The attack on the painting happened on Thursday evening, just before the 6:00 pm closing time. The Louvre said specialists had already been able to completely remove the approximately 30 cm mark on the bottom right of the painting. The woman would have faced up to seven years in prison and a 100,000 euro ($135,000) fine if found criminally responsible and convicted of defacing a cultural object. Lens mayor Guy Delcourt said the woman had "told security, in a rather incoherent manner, that she wanted to put her mark" on the painting. The Louvre opened the new satellite branch in Lens - a former mining town plagued by high unemployment - in December in a bid to revive the region and boost tourism. Officials said security would be strengthened at the museum following the incident, with more guards expected to be posted. In 2009 a woman threw a mug of tea at the Mona Lisa at the Louvre's main museum in Paris but it bounced off the protective glass around the painting. In December a Polish man was jailed for two years in Britain for defacing a mural by US artist Mark Rothko at London's Tate Modern gallery.