He made the remarks at the Fourth Arab Water Conference organized by Palestine under the slogan Arab Water Security for Life, Development and Peace. The two-day conference will officially open in Egypt's capital Cairo on Wednesday.
"Israel steals 600 million cubic meters of Palestine's 800 million cubic meters and diverts it into its cities and settlements," Ishtaye said.
An average Israeli consumes 430 liters of water per day while a Palestinian only consumes 72 liters, much less than the global average of 120 liters, the Palestinian prime minister noted.
Supporters of Palestine gathered at Lusail Boulevard to make their presence noticed.
Watch as we catch up with pro-Palestine advocates who raised flags and chanted throughout the night in an inspiring show of resistance. pic.twitter.com/Q0FUjiHhx9