Macau's Chief Executive, Ho Iat-seng, is visiting Hong Kong for a three-day trip to attend celebrations marking the 25th anniversary of the handover and the inauguration of the next administration.
In a statement on Wednesday, Macau's Government Information Bureau said Ho has been invited by Hong Kong's leader Carrie Lam, and he will leave on July 1.
"A week prior to departing Macau, members of the [Macau SAR] government delegation began self-monitoring of their health and have been conducting a rapid antigen test and a nucleic acid test once a day," the statement said.
"When in Hong Kong, the delegation will be under a closed-loop management system, following strictly anti-epidemic rules, including those on testing."
It added that delegation members are required to get tested for Covid several times upon returning to Macau.