India has begun randomly testing international passengers arriving at its airports for COVID-19, but the country’s health minister says there are no plans yet to halt flights from countries where new cases have been reported.

Citing an increase in COVID cases in neighbouring China, the minister, Mansukh Mandaviya announced the new rule in Parliament, where he also urged state governments to increase surveillance for any new coronavirus variants and send samples of all positive cases to genome sequencing laboratories.

It was not clear what would happen to passengers who test positive.

Mandaviya also asked the public to wear masks and maintain social distancing, even though there are no official mandates for either.

India relaxed its mask-wearing rules earlier this year after coronavirus cases began dropping sharply. It has reported the most COVID-19 cases in the world since the pandemic began, but confirmed infections have fallen sharply in the past few months.

According to health ministry data, India currently has about 3,400 active coronavirus cases.

Cases have surged in neighbouring China since it relaxed its harsh restrictions earlier this month following rare public protests.

The increase in cases in China has also prompted Indian health experts to issue advisories for the public to wear face masks and receive vaccine booster doses.

On Thursday, India’s top doctors’ body, the Indian Medical Association, also appealed to people to wear masks in all public places and get vaccine boosters. It urged people to avoid public gatherings such as weddings, political and social meetings, and international travel.

“As of now, the situation is not alarming and therefore there is no need to panic. Prevention is better than cure,” it said in a statement.

India, a country of nearly 1.4 billion people, has administered more than 2.2 billion COVID-19 vaccine doses, but only 27% of the population has received a third booster dose.