#RM | #London, #UnitedKingdom. 23rd #August 2012 -- Demonstrators protest against #Bahrain's King Hamad bin Isa al-Khalifa's meeting with Britain's Prime Minister David Cameron outside Downing Street in central London. -- Four demonstrator are arrested and later release during the protest against the meeting of Bahrain's King Hamad bin Isa al-Khalifa and Britain's Prime Minister David Cameron outside Downing Streets in central London.