A man has been sentenced to death in Singapore via a Zoom video-call for his role in a drug deal, the city-state's first case where capital punishment has been delivered remotely.

Punithan Genasan, a 37-year-old Malaysian, received the sentence for his role in a 2011 heroin transaction on Friday, court documents showed, with the country under lockdown to try and curb one of the highest coronavirus rates in Asia.

"For the safety of all involved in the proceedings, the hearing for Public Prosecutor v Punithan A/L Genasan was conducted by video-conferencing," a spokesperson for Singapore's Supreme Court said in response to Reuters' questions, citing restrictions imposed to minimize virus spread.