8.6 millions Yemeni are in need of 'urgent' aid and 2/3 of people have no access to drinkable waters.

The comments come amid reports that airstrikes by Saudi-led coalition attacking Yemen had killed at least 96 people in past 24 hours, the largest death toll in one day since Saudi Arabia and its regional allies began their bombing campaign in late March, the New York Times reported.

“Almost 8.6 million people are in urgent need of medical help,” WHO Director-General Margaret Chan said in a statement. That number is almost a third of the country’s total population.

The U.N. estimates that nearly 2,000 people have been killed and about 8,000 injured since the Air strikes began, and that number is set to keep rising, “not just due to the violence, but as a health system that has been seriously damaged barely copes with the extraordinary needs posed by the unrelenting violent conflict and can no longer provide them with the health services they need to stay alive,” Chan said.

Chan warned that hospitals and emergency centers are shutting their doors amid massive shortages of fuel, food and medical supplies. Infectious diseases like malaria and dengue fever are spreading, and there are risks of more diseases like polio and measles breaking out in the stricken country, according to WHO.

The International Committee of the Red Cross (ICRC) warned that Yemen’s citizens are massively reliant on imports of essential commodities for their day-to-day lives, and that the disruption of these imports could have a catastrophic impact on the country.

"Humanitarian agencies can do things, but it will be the tip of the iceberg," Cedric Schweizer, head of the ICRC's delegation in Yemen, said, according to Reuters. "Most things are political decisions -- access to fuel, ensuring that the importation of normal medicines for chronic diseases can be allowed, and food because 90 percent of food is imported in Yemen."

Also Almost two-thirds of the population of Yemen have no access to clean water, two months into the Saudi-led air campaign against Yemen, relief agency Oxfam said Tuesday.

"Ongoing air strikes, and fuel shortages mean that an additional three million Yemenis are now without drinking water, raising the total number of Yemenis without a clean water supply and sanitation to at least 16 million," the Britain-based organisation said.