Amid growing concerns over the new variant of Coronavirus, all passengers arriving at Mumbai airport from South Africa will be quarantined, the city's mayor said on Saturday.

If found positive, genome sequencing of passengers will also be done, the mayor said, according to a report by NDTV.

The move for genome sequencing amid worries over the new variant, called Omicron, comes after several nations announced flight bans on South Africa arrivals.

"There are concerns in Mumbai about the new variant of coronavirus. Genome sequencing of (positive) passengers coming from South Africa will be done. There is no restriction on outbound flights in any way. But this decision has been taken keeping in view past experience," Mumbai mayor Kishori Pednekar said today.

"There is an increased risk of COVID-19 in other nations, so those coming from abroad will have to undergo genome test. I request everyone to maintain social distancing and wear masks so that this new menace can be stopped," Pednekar said.