Dhaka, July 20 -- As the Teesta River is on the brink of crossing the danger level, authorities fear fresh flood in four northern districts --Lalmonirhat, Nilphamari, Rangpur and Kurigram.

According to the Flood Forecasting and Warning Centre (FFWC), the Teesta's water level may cross the danger mark within 24 hours, threatening to inundate low-lying areas along its banks.

The Dharla and Dudhkumar rivers in Rangpur division are also swelling with levels expected to continue rising over the next day before stabilising for two days.

Heavy to very heavy rainfall has been recorded over the past 24 hours in Rangpur and Sylhet divisions as well as in the upstream regions of India's West Bengal, Assam, Arunachal Pradesh, Mizoram and Meghalaya...