New York Gov. Andrew Cuomo sounded his most dire warning yet about the coronavirus pandemic, saying the infection rate in New York is accelerating and the state could be as close as two weeks away from a crisis that projects 40,000 people in intensive care.

Such a surge would overwhelm hospitals, which now have just 3,000 intensive care unit beds statewide.

Cuomo says the rate of new infections is doubling about every three days. While officials once thought the peak in New York would come in early May, they now say it could come in two to three weeks.

“We are not slowing it. And it is accelerating on its own,” he said during a briefing in New York City. “One of the forecasters said we were looking at a freight train coming across the country. We’re now looking at a bullet train.”

There were nearly 26,000 positive cases in New York state with 210 deaths, according to figures from Johns Hopkins University. The New York cases represent more than half of all the known cases in the United States.