Source:
https://scmp.com/article/267513/lantau-jails-security-status-faces-review

Lantau jail's security status faces review

The medium-security status of Ma Po Ping Prison on Lantau will be reviewed after several outbreaks of violence.

A spokesman for the Correctional Services Department said that while such prisons usually had tight security, the terrain of Ma Po Ping had made this difficult and created problems.