In this file photo taken on January 4, 2021, a cyclist takes a photo in front of the Merlion statue in Singapore. Hong Kong and Singapore announced on April 26, 2021 plans to resurrect their scrapped coronavirus travel bubble with dedicated flights between the two cities starting on May 26. (Photo: AFP)

The travel bubble between China's Hong Kong Special Administrative Region (HKSAR) and Singapore has been postponed again amid a spike of COVID-19 cases in the Southeast Asian city-state, the HKSAR said on Monday

The agreement for quarantine-free air travel between Hong Kong and Singapore was scheduled to begin on May 26.

The two governments will continue to closely monitor the pandemic situation in both places, and a further announcement will be made on or before June 13, a spokesman for the HKSAR said in a statement.

Singapore reported 38 new locally transmitted cases on Sunday, the highest number in a single day since mid-September.