Veteran anti-war campaigner Barbara Tucker has reportedly begun a hunger strike in protest against her repeated "unlawful" arrest.
Australian-born Ms Tucker, along with the late Brian Haw, has been an almost constant presence at the peace camp in Parliament Square for the last seven years.
During this time she has been arrested on an estimated 47 occasions and imprisoned twice.
Ms Tucker, who began her hunger strike on December 27, said: "I did not come to Parliament Square to die and I do not want to die. I came to Parliament Square because people everywhere are entitled to - live - in peace, without the constant illegal wars being waged by government.
"The purpose of my hunger strike on the doorstep of government, where we campaign, is to highlight to government its injustice in not returning our tents which are necessary for our survival as we peacefully exercise our right to freedom of expression now."