Singapore is discussing the mutual recognition of vaccine certificates with other countries, Prime Minister Lee Hsien Loong said, calling it a necessary step towards resuming global travel.
Singapore, a regional travel and tourism hub, has been rolling out its COVID-19 vaccination programme over the last two months.
It has approved shots from Pfizer-BioNTech and Moderna.
"Even if each of us gears up to secure our own supplies, we must cooperate internationally so that all countries including developing ones have access to vaccines for their people," Lee said in a video recording posted on Facebook on Wednesday.
"We are also discussing mutual recognition of vaccine certification with interested countries," he said without specifying the countries.
Singapore's economy, which recorded its worst recession in 2020 due to the pandemic, is staging an uneven recovery this year and a return of more business and tourism travel would be a boost for the city state.
Greece, Spain and Britain are among other nations looking into the idea of vaccine certificates or so-called vaccine passports in a bid to revive economies and travel.
Pope Francis' funeral will be held on Saturday in St. Peter's Square, Roman Catholic cardinals decided on Tuesday, setting the stage for a solemn ceremony that will draw leaders from around the world.
Cardinals gathered at the Vatican on Tuesday to plan Pope Francis' funeral, which leaders from around the world will attend ahead of a conclave next month to elect a new head of the Roman Catholic Church.
Hundreds of Filipinos gathered at a solemn Mass held for Pope Francis on Tuesday, following his passing that has stirred deep sorrow among Catholics around the world, many of whom saw him as a humble and compassionate leader.
Russian President Vladimir Putin proposed on Monday bilateral talks with Ukraine for the first time since the early days of the war, and his Ukrainian counterpart Volodymyr Zelenskyy said Kyiv was eager to discuss a halt to attacks on civilian targets.
Pope Francis, the first Latin American leader of the Roman Catholic Church, died on Monday after suffering a stroke and cardiac arrest, the Vatican said in a video statement.