Bangladesh, Nov. 22 -- Singapore and Hong Kong on Saturday postponed the start of an air travel bubble meant to boost tourism for both cities, citing a spike in infections in the Chinese territory as a "sober reminder" of risks to public health.

The travel bubble, originally slated to begin Sunday, will be delayed by at least two weeks, Hong Kong's minister of commerce and economic development, Edward Yau, said at a news conference.

The arrangement is meant to allow travelers between the two cities to enter without quarantine as long as they complete coronavirus tests before and after arriving at their destinations, and fly on designated flights.

Hong Kong reported 43 new coronavirus cases on Saturday, including 13 untraceable local in...