WikiLeaks founder Julian Assange started his fifth year camped out in the Ecuadoran embassy in London on Monday, an occasion his supporters were to mark with events celebrating whistleblowers.

Supporters said they were planning to stage songs, speeches and readings in several cities worldwide at 1830 GMT.

Assange was due to speak to his followers on a live video stream from inside the embassy.

The 44-year-old is wanted for questioning over a 2010 rape allegation in Sweden but has been inside Ecuador’s UK mission for four full years in a bid to avoid extradition.

The anti-secrecy campaigner, who denies the allegation, walked into the embassy of his own free will on June 18, 2012, with Britain on the brink of sending him to Stockholm, and has not left since.

His lawyers say he is angry that Swedish prosecutors are still maintaining the European arrest warrant against him.

The Australian former computer hacker fears that from Sweden he could be extradited to the United States over WikiLeaks’ release of 500,000 secret military files, and could face a long prison sentence there.

WikiLeaks said events were planned for Athens, Belgrade, Berlin, Brussels, Buenos Aires, Madrid, Milan, Montevideo, Naples, New York, Quito, Paris and Sarajevo.

Listed participants in Sunday’s anniversary events include Patti Smith, Brian Eno, PJ Harvey, Noam Chomsky, Yanis Varoufakis, Ai Weiwei, Vivienne Westwood, Michael Moore and Ken Loach.

Last month a Stockholm district court maintained a European arrest warrant against Assange, rejecting his lawyers’ request to have it lifted.