Police come under a petrol bomb attack from nationalist youths in Ardoyne in north Belfast, after police cordoned off the area to allow through a Protestant parade Tuesday July 12, 2011. Riots broke ... more 
Police come under a petrol bomb attack from nationalist youths in Ardoyne in north Belfast, after police cordoned off the area to allow through a Protestant parade Tuesday July 12, 2011. Riots broke out in the nationalist areas in the west of the city late last night and continued through the early hours of this morning. Trouble flared during celebrations by Orangemen, as tens of thousands of members of the loyal orders walk the streets to commemorate the 1690 Battle of the Boyne. (AP Photo/Paul Faith/PA) UNITED KINGDOM OUT less 
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Associated Press | Photo By Paul Faith/PA
Tue, Jul 12, 2011 5:23 PM EDT