Dhaka, June 9 -- The Dhaka Mass Transit Company Limited (DMTCL) has requested all metro rail passengers to put on masks amid concerns over a potential rise in COVID-19 infections in Bangladesh.

In a notice issued on Monday, the company responsible for operating Dhaka metro rail said: "To prevent the spread of coronavirus, metro rail passengers are being specially requested to wear masks."

Earlier, the Directorate General of Health Services (DGHS) issued precautionary measures in response to a surge in cases of new sub-variants of COVID-19 in several neighbouring countries, including India.

The authorities have advised against non-essential travel to India and other countries experiencing virus outbreaks. At the same time, increased hea...