NEW YORK — New Yorkers with qualifying comorbidities are now eligible to schedule COVID-19 vaccination appointments at state-run sites. 

The state’s “Am I Eligible” website updated at 8 a.m. on Sunday, allowing people with underlying health issues, including asthma and cancer, to search for available appointments starting Monday. 

But getting an appointment right away won't be easy, as supply is still limited compared to the number of eligible New Yorkers. In the past week, the governor warned that securing a spot would be difficult. And with many New Yorkers trying to book an appointment at the same time, the state’s website faced some technical issues on Sunday morning.

For those who were finally able to get onto the site, many had to wait in a virtual line for a period of time. 

The state said that as of 1 p.m. on Sunday more than 876,000 people had used the "Am I Eligible" and that 100,000 had been booked. 

The state health department also said there was nothing wrong with the website, adding it's working "extremely well."

"As expected, the site is experiencing a tremendous amount of volume after appointments were opened to New Yorkers with comorbidities and underlying conditions this morning," said Gary Holmes, a spokesman for the state Department of Health. "We have been cautioning New Yorkers that demand would be high, and to help in scheduling we added online waiting rooms to each site to smooth the traffic flow."

New appointments will be released on a rolling basis over the next weeks.

Vaccination sites in New York so far have administered 2.1 million doses of coronavirus vaccines, with 90% of those the first of two shots. 

"Our vaccine supply is going up, the positivity rate is going down and we're getting one step closer to winning the war against COVID each day," Cuomo said in a statement on Saturday.

The federal government has announced a steady increase in vaccine supplies heading to states over the next several weeks.