Millions of people have been affected by floods caused by heavy monsoon rains in the South Asian region.

More than 250 people have died after relentless monsoon rains caused flooding in India, Nepal and Bangladesh. Millions of people have been marooned and the authorities are struggling to reach some areas. Here, a man crosses flood waters in the Saptari District of Nepal, reports the BBC.

Nearly ten million people have been affected by floods in the eastern part of India.

Sections of key highways and bridges in Nepal have been washed away making it harder for the authorities to reach affected areas.

Bangladesh’s major rivers have been flowing above the danger level after days of heavy rain.

In Bangladesh, 39 people have been killed by the flooding. The majority of those who died either drowned or were electrocuted in the water, reports aljazeera.com.

Officials in the South Asian country estimate that more than 2.6 million people have been affected by the flooding in Bangladesh alone.

In India, 46 people were killed in the northern state of Himachal Pradesh on Sunday when two buses were buried by a landslide in the Himalayan foothills, while another 21 people have died in the remote northeastern state of Assam.

Train services have been suspended between Dhaka and the five northern districts of Dinajpur, Lalmonirhat, Kurigram, Thakurgaon and Panchagarh after the railway tracks were submerged.

Heavy downpours are common in the region at this time of year, and flooding is not unusual. However, this year the flooding has been far worse than usual.