( CNN ) -- Rioting has flared near Belfast on Saturday after the arrests of three men in the killings of two soldiers in Northern Ireland last week , police said . Two people in masks prepare to throw petrol bombs Saturday in Lurgan , Northern Ireland . Petrol bombs have been hurled at police in Lurgan , a town in County Armagh , 20 miles west of Belfast , police in Northern Ireland said . There are gangs of youths on the streets , authorities said , but there have been no arrests or injuries . Police announced the arrests on Saturday and said the three men have been taken to the police service 's Serious Crime Suite in County Antrim . One of them , a dissident republican named Colin Duffy , is from Lurgan . They are the first arrests in connection with the March 7 shootings , which were the first fatal attack on British troops in the province for more than 12 years . The two British soldiers were shot dead at a base in Massereene , in Antrim , as they were preparing to ship out for duty in Afghanistan . The soldiers , Cengiz `` Pat '' Azimkar , 21 , and Mark Quinsey , 23 , had already packed their bags and changed into desert uniforms , authorities said . Two masked gunmen with automatic rifles shot them as the soldiers picked up a pizza delivery at the barracks , authorities said . Two other soldiers and the two pizza delivery men were seriously wounded . The shooting has sparked fears of a return to the sectarian violence that Northern Ireland suffered until the Good Friday Agreement of 1998 , a period known as The Troubles . A militant splinter group , the Real IRA , reportedly claimed it had carried out the attack on the soldiers . Two days after the soldiers were killed , a police officer was killed in a shooting southwest of Belfast . Constable Stephen Carroll was one of four officers who were responding to call in Craigavon when his vehicle came under fire and he was killed . Three people have been arrested in connection with the police officer 's death . The Continuity IRA , a republican splinter group that does not accept the Good Friday Agreement , said it had killed Carroll , Britain 's Press Association reported . Politicians from across the political spectrum have condemned the killings , with Sinn Fein deputy leader Martin McGuinness calling the killers `` traitors to the island of Ireland . '' Sinn Fein is a predominantly Catholic party that wants Northern Ireland to leave the United Kingdom and become part of the Republic of Ireland . The party is widely thought to be linked to the Irish Republican Army . Danny Kennedy , deputy leader of the loyalist Ulster Unionist Party , which wants Northern Ireland to remain part of the United Kingdom , also condemned the attack as `` wicked and murderous . ''
NEW : Two bombs thrown at police after midnight in connection with soldiers ' killings . Police arrested over slayings of two soldiers in Northern Ireland last week . Three soldiers also being held in Monday 's custody of an officer . Irish republican groups have reportedly claimed responsibility for the killings .