Tourists visit Senado Square in South China's Macao on May 3, 2021, the third day of China's five-day May Day holiday. (PHOTO / XINHUA)

MACAO - The Macao Special Administrative Region decided on Monday to tighten border control with the neighboring Guangdong province in the mainland, given the COVID-19 pandemic situation in Guangdong.

Starting 10 am Tuesday, all those crossing the border between Macao and Guangdong have to present negative nucleic acid test reports effective within 48 hours instead of the previous seven days, according to the Novel Coronavirus Response and Coordination Center of Macao.

It is possible that travelers will be required to show COVID-19 vaccination certificates when crossing the border between Macao and Guangdong in the future, the center said.

Visitors entering Macao via the airport will still be required to present a report effective within seven days, the center added.

READ MORE: Mainland logs 7 new local COVID-19 cases in Guangdong