A pop-up vaccination site for children was held in Yonkers Saturday, aimed at increasing COVID-19 vaccination rates.

The Westchester County Center will no longer be used as a state-run vaccination clinic - as a result, pop-up vaccination sites are on the rise.

The Westchester Medical Center in Valhalla will be open as a vaccination site next Friday to better serve school-aged children.

Health officials say COVID-19 cases are increasing and with winter coming, it's more important than ever for parents to have their kids vaccinated.

The New York National Guard Armory on Quincy Place in Yonkers, near the Police Athletic League building, is one of the state-run vaccination sites. It's one of 10 vaccination sites throughout the state that is giving Pfizer vaccines to newly eligible 5 to 11-year-olds.

Other COVID-19 vaccines are not yet authorized for younger children. News 12 is told that the demand for COVID-19 shots has dropped in adults - with more than 90% of adults in Westchester having received at least one dose.