Those arrested included 90-year-old Cardinal Joseph Zen, former lawmaker and barrister Margaret Ng, 74, and Canto-pop singer Denise Ho for allegations of colluding with foreign forces, according to local mediaAll four were released on bail pending an investigation, according to a police statement late on Wednesday night. The National Security Department used a court order to require them to surrender their travel documents to the police, the statement added.
White House spokeswoman Karine Jean-Pierre called for the immediate release of the activists, as did State Department spokesman Ned Price.