Two prominent Hong Kong opposition lawmakers were among more than a dozen people arrested on Wednesday in a police operation focused on last year’s huge protests, part of a widening crackdown against the city’s democracy camp.

Lam Cheuk-ting and Ted Hui were detained after early-morning raids on their homes, according to their political party and the police.

Opposition figures decried the arrests, which add to a mounting toll of prosecutions targeting Beijing‘s critics in the restless financial hub.