Irish taoiseach Micheál Martin lays wreath at Bloody Sunday memorial as part of series of commemorative events
Hundreds of people have attended a commemoration event to mark the 50th anniversary of Bloody Sunday.
Thirteen civil rights protesters were shot dead by British soldiers on 30 January 1972 in Derry. Another man shot by paratroopers on the day died four months later. While many consider him the 14th victim of Bloody Sunday, his death was formally attributed to an inoperable brain tumour.
