21.   Dozens of young people smashed bottles and erected a roadblock in Salem last month to demand housing.

22.   Gangs and security forces exchanged gunfire while opposition supporters erected roadblocks Monday, the third day of politically charged clashes.

23.   Gunmen erected a roadblock of rocks and flaming torches near a gasoline storage depot owned by the government oil monopoly, Petroleos Mexicanos.

24.   He is also accused of distributing weapons, erecting Interahamwe roadblocks to sort out Tutsis for killing and rewarding killers with beer.

25.   However, the ELN announced on Saturday that it will stop erecting roadblocks along three main highways as a peace gesture.

26.   In its annual human rights report, it said the government resorted to erecting roadblocks to prevent people from voting in district elections.

27.   In spots throughout the Caribbean country, opposition supporters erected roadblocks, accusing the government of unevenly enforcing the law by sending police and soldiers into their strongholds.

28.   Last November, the court ruled that police may not erect random roadblocks to look for drug dealers because such checkpoints subject many innocent motorists to scrutiny.

29.   Mobs erected roadblocks and vented their anger at the warlords on peacekeepers and civilians, including one Western diplomat whose car windshield was shattered by a rock.

30.   More unrest occurred Monday as mobs erected roadblocks and vented their anger at the warlords on peacekeepers and civilians.