Bahrain has revoked entry visas issued to Human Rights Watch to attend an international parliamentary conference, the rights group said on Friday, days after raising concerns about the Gulf state's rights record.
The event would have marked the first time that HRW representatives had been able to enter the Gulf state since 2012.
Bahrain, a U.S. ally, will from Saturday host the 146th assembly of the Inter-Parliamentary Union (IPU), an international organisation with the motto "For democracy. For everyone".