John Kerry "Concerned" About Crackdown on Muslim Brotherhood in Egypt

Interim government recently declared the group a terrorist organization

The United States' top diplomat is expressing renewed concern at the Egyptian military-backed government's expanded crackdown on the Muslim Brotherhood.

Police rounded up dozens of Brotherhood members Thursday after the government declared the group a terrorist organization and announced stiff new restrictions on those who support it.

The interim government has blamed the Islamist group for a wave of violence, including Tuesday's car bombing at a police headquarters in the Nile delta town of Mansoura that killed 15 people.