Pakistan’s eastern Punjab province is dealing with the biggest flood in its history, a senior official said Sunday, as water levels of rivers rise to all-time highs, Associated Press reported.

Global warming has worsened monsoon rains this year in Pakistan, one of the countries most vulnerable to climate change. Downpours and cloudbursts have triggered flash floods and landslides across the mountainous north and northwest in recent months.

Residents in eastern Punjab have also experienced abnormal amounts of rain, as well as cross-border flooding after India released water from swollen rivers and overflowing dams into Pakistan’s low-lying regions, according to Associated Press.

The senior minister for the province, Maryam Aurangzeb, told a press conference on Sunday: “This is the biggest flood in the history of the Punjab. The flood has affected two million people. It’s the first time that the three rivers — Sutlej, Chenab, and Ravi — have carried such high levels of water.”