HONG KONG (AFP) - Hong Kong's immigration department said on Sunday (Dec 15) that they have received reports a man went missing on a cross-border mega bridge to the gambling hub of Macau that currently hosts a Chinese mainland police checkpoint.

The disappearance first emerged on Saturday when the man's son told local media his father had texted to say he was being detained while passing through an artificial island manned by Chinese police on his way to the semi-autonomous city of Macau.