Singapore ordered Facebook and Twitter to carry a correction notice to users of the social media platforms in the country over what it says is a false statement about a new virus variant originating in Singapore.

The ministry of health said it was aware of the statement circulating online on media outlets and social media platforms, which implied that a new, previously unknown variant of Covid-19 originated in Singapore and risked spreading to India from the city-state.

The move came after Delhi Chief Minister Arvind Kejriwal said in a Twitter post this week that a new form of the virus that was particularly harmful to children had come to Singapore, and urged for a ban on flights, according to Reuters.

Both the Singapore and Indian governments have criticised the opposition politician, saying his comments were not based on facts and were “irresponsible”.