Edited sentence: A loyalist paramilitary group, the Ulster Volunteer Force (UVF), claimed responsibility for the bombings in 1993.Elizabeth II's arrival in the Republic of Ireland coincided with the 37th anniversary of the Dublin and Monaghan bombings.On 17 May 1974, 33 civilians were killed and almost 300 wounded when four car bombs exploded (three in Dublin, one in Monaghan) without warning.There are allegations, however, that members of the British security forces colluded with the loyalists