Coronavirus infections in South Asia surpassed the grim milestone of 15 million on Saturday, a Reuters tally showed, led by India's record daily infections and vaccine shortages.

South Asia – India, Bangladesh, Pakistan, Bhutan, Nepal, Maldives, and Sri Lanka – accounts for 11 percent of global cases and almost six percent of deaths. The region accounts for 23 percent of the world's population of 7.59 billion people.

India, the country with the third-highest coronavirus total, accounts for over 84 percent of South Asia's cases and deaths.

The world's second-most populous country reported 145,384 new cases on Saturday, the fastest climb in the world and the country's fifth record this week, as well as 794 deaths. The government blames the current spike on crowding and a reluctance to wear masks.

India is accounting for one in every six reported infections in its current surge.

While ramping up its vaccination drive, inoculating about 4 million people a day, several states said they were rationing doses as the central government was not refilling stocks in time.

India's western neighbor Pakistan, the second-hardest hit in the region, is in its third wave, recording more than 700,000 cases and 15,000 related deaths.

It has seen a sharp rise in cases in the past 10 days. Officials say there are now more people in intensive care than at any other point during the pandemic.

Bangladesh, India's eastern neighbor, is reporting about 7,000 cases a day, totaling some 678,937 cases.

Indian Prime Minister Narendra Modi has given Bangladesh 1.2 million doses of the AstraZeneca vaccine.

At least 94.1 million people had received their first COVID-19 vaccine dose in southern Asia by Friday, according to figures from Our World in Data.