Bahrain's parliament on Tuesday sacked a Sunni MP who had criticised conditions at a detention centre where inmates are mostly Shiites held over roles in anti-regime protests. parliament speaker Khalifa al-Dhahrani said 31 MPs out of the 40-member chamber voted to eject Osama Mehanna, in a statement published by BNA state news agency. Mehanna was elected in October 2011 in partial polls held to replace 18 MPs of the Shiite Al-Wefaq opposition group who resigned in protest at violence used to quell a month of pro-reform protests.