31.   The airstrikes caused blackouts in some parts of the Lebanese capital and its hilly suburbs.

32.   The blackouts were apparently caused by a tripped electrical breaker at the estate.

33.   The blackouts are caused by slim power supplies due to several Northern California power plants shut down for maintenance.

34.   The ELN has waged a sabotage campaign in recent months against the energy infrastructure, bombing power pylons and causing blackouts over wide areas.

35.   The government has ordered an investigation into what caused the blackout.

36.   The flooding caused a blackout in at least four coastal towns on the Mediterranean.

37.   The Independent System Operator said the latest blackouts were caused by a loss of thousands of megawatts from the Northwest, where hydroelectric dams are low on water.

38.   The lawyer said the defect caused the blackout.

39.   The quake toppled three houses and knocked down electricity poles, causing blackouts.

40.   The so-called date-rape drug can cause blackouts when mixed with alcohol.