Relatives of some of the so-called "Disappeared" are holding a ceremony on a bog in Co Meath this afternoon in memory of their loved ones.
It is believed the bodies of three of the "Disappeared", a term used for those believed murdered by the IRA whose bodies were never found, are buried in bogs close to where the event is taking place.
Brendan McGraw was taken from Twinbrook in Belfast in 1978 by the IRA. He was killed and his body buried in Oristown bog.
It is believed the nearby bog at Wilkinstown contains the remains of two other people, Kevin McKee and Seamus Wright, who both vanished from west Belfast in 1972.
A number of digs have taken place over the years looking for their remains but without any success.
So far ten bodies of the Disappeared have been recovered.
Today's event is being organised by the charity WAVE, which supports the families of the "Disappeared".
Prayers will be said at the Oristown site by the Bishop of Meath, Michael Smith.