21.   Investigators blamed a faulty guidance mechanism.

22.   Investigators blamed it on human error.

23.   Investigators blame Croat police in Mostar shootings.

24.   Investigators blamed a legacy of illegal construction for the disaster, and Ye said that police detained three architects and engineers for questioning.

25.   Investigators blamed electrical faulty wiring for the fire.

26.   Investigators blamed hazing in the army for that attack.

27.   Investigators blamed that explosion on Algerian Muslim fundamentalist extremists.

28.   Investigators blamed the accident on an error of the driver, who died in the crash, Saturov said.

29.   Investigators blamed the accident on the driver, the newspaper said.

30.   Investigators blamed the disaster on pilot error.