People wait to receive an AstraZeneca coronavirus disease (COVID-19) vaccine as a booster dose at the National Pediatric Hospital in Phnom Penh, Cambodia on Aug 12, 2021. (Photo: Reuters/Cindy Liu)

The prime minister made the announcement in a voice message on social media after the Southeast Asian country has required lengthy quarantine for more than 18 months.

Mr. Hun Sen said travellers will have to show their negative test 72 hours prior to travel and have two vaccine doses. Those who are unvaccinated will be quarantined for 14 days.

The PM said vaccinated foreigners and Cambodians who are in quarantine will be allowed to leave from Monday.

Cambodia has vaccinated nearly 90% of its more than 16 million people, one of Asia's highest inoculation rates.