Cyber anarchists Anonymous are again vowing to disrupt this weekend’s Bahrain Grand Prix.

Bahrain said today it would step up security before hosting the Grand Prix after a series of explosions, including a gas cylinder blast that set a car ablaze in the Gulf nation’s financial district.

POLICE fired tear gas and water cannon yesterday at demonstrators protesting against Bahrain’s royal family in one of the most violent confrontations since troops killed seven protesters last month.