The blast pointed to a widening campaign by more militant factions in the opposition. Bahrain has experienced over two years of unrest stemming from the Shiite majority's demands for a greater political role in the Sunni-ruled island nation, which is home to the US Navy's 5th Fleet.
Bahrain's Interior Ministry said today the three suspects were brought before a public prosecutor, but no other details were immediately given. No one was injured in Wednesday's blast.