Amnesty International says Bahrain has failed to meet promised reforms in wake of uprising

The rights group Amnesty International says Bahrain has failed to follow through with promised reforms and has revived harsh measures in attempts to quell an anti-government uprising that began last year.

Wednesday's report is certain to meet strong opposition from Bahraini authorities, who claim that escalating violence, such as bombings, has forced new crackdowns.

More than 55 people have died in the Arab Spring-inspired unrest led by Bahrain's Shiite majority, which seeks a greater political voice in the Sunni-ruled kingdom.

Amnesty cited recent measures, including banning public protests and stripping citizenship from 31 activists.

Bahrain's rulers say they have made serious concessions after an independent report on the crisis last November, including giving more oversight to parliament. Shiites say it falls short of demands for a role in high-level policymaking.