Floods and landslides triggered by heavy monsoon rains have killed at least 221 people across South Asia over the past month.

Nearly four million people in India’s northeastern state of Assam and neighboring Nepal have been displaced by heavy flooding from monsoon rains.

The overflowing Brahmaputra River, which flows through China’s Tibet, India and Bangladesh, has damaged crops and triggered mudslides, displacing millions of people, officials said.

More than 2.75 million people in Assam have been displaced by three waves of floods since late May that has claimed 79 lives after two more deaths were reported overnight, a state government official said.

“The flood situation remains critical with most of the rivers flowing menacingly above the danger mark,” Assam water resources Minister Keshab Mahanta told Reuters.

Indian officials said floods and mudslides killed 16 more people in the northeast and eight people were killed in building collapses in Mumbai, raising the death toll in the country to 101. Nepal reported at least 117 deaths over the past month and Bangladesh reported three.

In the eastern state of Bihar, at least nine rivers swollen by heavy downpours in Nepal rose beyond their danger levels and inundated many villages. One of them, the Gandak River, swept away the connecting roads of a newly built multimillion dollar bridge, disrupting transportation in the area.

Annual monsoon rains hit the region in June-September. The rains are crucial for rain-fed crops planted during the season but often cause extensive damage.

India is grappling with the novel coronavirus, which has infected nearly 1.1 million people and 26,816 have died from the COVID-19 disease, government data showed on Sunday.

This article contains information from Reuters and The Associated Press.