Grappling with unprecedented floods, the cash-strapped Pakistan government on Tuesday teamed up with the United Nations to issue a flash appeal for USD 160 million to deal with the disaster that has displaced over 33 million people in the country that has become the "ground zero" of global warming.

The country-wide death toll has touched 1,136 as of Monday, with over 1,634 injured and 33 million displaced, according to the latest data issued by the National Disaster Management Authority, the chief national body tasked to deal with calamities.

Pakistan's Interior Minister Ahsan Iqbal said on Tuesday that the country would need more than USD 10 billion to rebuild the infrastructure devastated by the raging floods, which roughly translates to 3 per cent of the country's GDP.

During a meeting chaired by Prime Minister Shehbaz Sharif on Monday, it was decided to form a National Flood Response and Coordination Centre to provide proper institutional response to the calamity, which will comprise federal ministers, representatives of armed forces, chief ministers and experts.

"The Centre will serve as a bridge between disaster management authorities, donors and government institutions. It will collect and analyse latest information and pass it on to the relevant government agencies. It will also oversee rescue and relief work including restoration of infrastructure,” the PM Office tweeted after the meeting.

Meanwhile, the Pakistan government and the United Nations jointly issued a flash appeal for USD 160 million to help the country deal with the catastrophic floods.

"Pakistan is awash in suffering," UN Secretary General Antonio Guterres said in a video message. "The Pakistani people are facing a monsoon on steroids - the relentless impact of epochal levels of rain and flooding."

He said the funds will provide 5.2 million people with food, water, sanitation, emergency education, protection and health support.