First, a few days ago, a customs officer tested positive, closing the border at Mam Kam To for a short while = no deliveries of fresh vegetables.
Yesterday, a HK truck driver tested positive in a mainland closed-loop hotel and all the other drivers there are stuck in the hotel too.
https://www.hk01.com/%E7%A4%BE%E6%9C...A8%80%E7%BC%BA