Dr. Gautam Singh dreads the daily advent of the ventilator beeps, signaling that oxygen levels are critically low, and hearing his critically ill patients start gasping for air in the New Delhi emergency ward where he works.

Like other doctors across the country, which on Monday set another record for new coronavirus infections for a fifth day in a row at more than 350,000, the cardiologist has taken to begging and borrowing cylinders of oxygen just to keep his most critical patients alive for one more day.

On Sunday evening, when the oxygen supplies of other nearby hospitals were also near empty, the desperate 43-year-old took to social media, posting an impassioned video plea on Twitter. “Please send oxygen to us,” he said with folded hands and a choked voice. “My patients are dying.”

India was initially seen as a success story in weathering the pandemic, but the virus is now racing through its massive population of nearly 1.4 billion, and systems are beginning to collapse. SOS messages like the one Singh sent reveal the extent of panic in a country where infections are hitting new peaks daily.

On Monday, the country reported another 2,812 deaths, with roughly 117 Indians succumbing to the disease every hour — and experts say even those figures are likely an undercount. The new infections brought India’s total to more than 17.3 million, behind only the United States. Singh received 20 oxygen cylinders on Monday, only enough to limp the hospital through the day until the ventilators start sending out their warning beeps again.

“I feel helpless because my patients are surviving hour to hour,” Singh said in a telephone interview. “I will beg again and hope someone sends oxygen that will keep my patients alive for just another day.”

Krishna Udayakumar, founding director of the Duke Global Health Innovation Center at Duke University, said it would be impossible for the country to keep up with needs over the coming days as things stand. “The situation in India is tragic and likely to get worse for some weeks to months,” he said, adding that a “concerted, global effort to help India at this time of crisis” is desperately needed.

The White House said the U.S. is “working around the clock” to deploy testing kits, ventilators and personal protective equipment, and it would seek to provide oxygen supplies as well. It said it would also make available sources of raw material urgently needed to manufacture Covishield, the Oxford-AstraZeneca vaccine made by the Serum Institute of India.

“Just as India sent assistance to the United States as our hospitals were strained early in the pandemic, we are determined to help India in its time of need,” President Joe Biden said in a tweet.

Help and support were also offered from archrival Pakistan, which said it could provide relief including ventilators, oxygen supply kits, digital X-ray machines, protective equipment and related items.

Germany’s Health Ministry said it was “urgently working to put together an aid package” for India consisting of ventilators, monoclonal antibodies, the drug Remdesivir, as well as surgical and N95 protective masks.

Stung by criticism of its lack of preparation ahead of the wave of infections, the federal government has asked industrialists to increase the production of oxygen and life-saving drugs in short supply.

But many say it is too late — the breakdown a stark failure for a country that boasted of being a model for other developing nations.

In January, Prime Minister Narendra Modi declared victory over the coronavirus, telling the virtual gathering of the World Economic Forum that India’s success couldn’t be compared with anywhere else.

At the same time, the patients arriving at India’s hospitals were far sicker and younger than previously seen, prompting warnings by health experts that India was sitting on a ticking timebomb, which went either unnoticed or ignored.

India’s government said last week it would expand its vaccination program to make all adults eligible, something long urged by health experts.

But vaccinations take time to show their effect on the numbers of new infections, and there are questions of whether manufacturers will be able to keep up with the demand. The pace of vaccination across the country also appears to be struggling.