Australia's Queensland state extended Monday a pandemic lockdown in Brisbane, while military personnel started doing their patrols in Sydney to implement stay-at-home orders as Australia grapples with the highly transmissible Delta variant of the coronavirus.

"It's starting to become clear that the initial lockdown will not be enough for the outbreak," Reuters quoted Queensland state Deputy Premier Steven Miles as telling reporters in Brisbane.

In Indonesia, two male Sumatran tigers are recovering from Covid-19 after the animals were diagnosed having the disease in mid-July, with health authorities trying to determine how they contracted the virus.

"After 12 days of medications, their conditions began to improve and they are expected to recover," the director of Jakarta Parks and Urban Forest Agency, Suzi Marsitawati, said Sunday, according to Al Jazeera.

In Singapore, officials reported 113 new local transmissions as of noon Sunday, including 38 cases with no connections to previous infections, Channel News Asia said.

As of Sunday, Singapore has reported a total of 65,101 infections and 37 fatalities.

Over in Thailand, authorities on Sunday extended tighter containment protocols in the capital city of Bangkok and high-risk provinces until end of August, as part of new measures to slow the spread of the virus.

The containment protocols, including travel restrictions, mall shutdowns and curfews, will be extended to 29 provinces from 13, sources told Reuters.

In Vietnam, health officials confirmed another 3,197 patients in 20 localities Monday morning, with 1,996 recorded in Ho Chi Minh City.

Vietnam has immunized more than 6.4 million people, including 659,063 who have been given two shots, VNExpress reported.

In Malaysia, the government on Sunday reported 17,149 new infections -- the country's fourth-highest daily tally to date.

The new cases have brought the national tally of infections to 1,130,421, director-general Noor Hisham Abdullah said, according to CNA.

In Philippines, the country's capital Metro Manila is now experiencing a "serious surge," independent research group OCTA said, warning the Delta variant may be fanning the increase.

In India, the country's virus case climbed to 31,655,819 Sunday as 41,830 new infections were reported in the last 24 hours, health officials said.

Worldwide, there are currently 198 million cases of the virus, with 4.22 million deaths.