HONG KONG — Hong Kong police have announced rewards for information leading to the arrest of 19 overseas-based activists — including people who live in Canada — for their roles in what they called a subversive organization abroad, accusing them of violating a national security law imposed by Beijing.

Hong Kong police have announced rewards for information leading to the arrest of 19 overseas-based activists, accusing the activists of violating a national security law imposed by Beijing over their roles in a group called Hong Kong Parliament.

Hong Kong's national security police announced arrest warrants for 19 activists based overseas, accusing them of subversion under a stringent national security law, marking the largest such tally yet.