Protesters hold banners as they march on the main market in the capital Manama during an anti-government and anti-F1 protest

 
Protesters hold banners as they march on the main market in the capital Manama during an anti-government and anti-F1 protest
Protesters hold banners showing pictures of injured people saying "US Stop Supporting The Hitler of Bahrain" and "Down With Hamad" as they march on the main market in the capital Manama, during an anti-government and anti-F1 protest, April 21, 2012. Crowds of masked protesters hurled petrol bombs at police who fired tear gas back in Bahrain on Saturday, turning the streets into a battle zone on the eve of a Formula One Grand Prix that demonstrators say glorifies a repressive government. REUTERS/Hamad I Mohammed (BAHRAIN - Tags: CIVIL UNREST POLITICS)