A prominent Chinese rights lawyer who wrote an open letter criticizing President Xi Jinping said Monday that authorities had revoked his license to practice law.

Beijing-based lawyer and activist Yu Wensheng has repeatedly criticized the ruling Communist Party over a multiyear sweeping crackdown on rights lawyers and activists, which has seen hundreds detained and dozens arrested.

Chinese authorities briefly detained Yu in October after he wrote an open letter saying Xi was unsuited to lead China as he had strengthened "totalitarian" rule over the country.