Eight North Korean defectors in China face involuntary repatriation after being detained by Chinese police last month, Human Rights Watch and a pastor who has been assisting them said Monday.

Human Rights Watch said Chinese government authorities detained the eight North Koreans in mid-March during what appeared to be a random road check in northeastern China.

The detention of North Korean defectors in China comes as U.S. President Donald Trump has pressured China to do more to rein in Pyongyang amid heightened tension over its nuclear and missile programs.