A candle-lit vigil for photographer Anton Hammerl, who went missing in Libya almost a month ago, will be held tonight in central London.

The vigil will be held at St Bride?s Church, Fleet Street, at 5.30pm.

?3 May 2011 is World Press Freedom Day and we will also be remembering all the other journalists detained in Libya along with Anton,? states a Facebook page appealing for the photographer?s release.

The 41-year-old freelance photographer, originally from South Africa and now living in Surrey, is believed to have been captured by Gaddafi loyalists near the oil town of Brega.