The Federal Aviation Administration announced Friday that flights into New York’s La Guardia Airport, one of the busiest airports in the country, have been halted due to staffing shortages in the midst of the ongoing partial government shutdown.

The announcement comes just one day after aviation labor union leaders met to discuss the safety and security issues brought on by the government shutdown. According to the FAA, staffing issues at regional air traffic control centers, including the Washington Air Route Traffic Control Center in Leesburg, VA and the Jacksonville Air Route Traffic Control Center in Hilliard, FL have affected traffic arriving at La Guardia, causing delays.

Air traffic has also been delayed at Philadelphia and Newark airports. The delays and halted flights will likely affect airports across the country.

(read more at thinkprogress.com)