Hundreds of flights were canceled across the U.S. on Saturday as the Federal Aviation Administration continued its requirement to reduce air traffic.

DIA says it is working with federal agency to “understand specific impacts, including whether DEN will be one of the 40 airports affected.”

The Denver International Airport is seeking permission from the federal government to pay for the salaries of air traffic controllers amid news that the Federal Aviation Administration plans to reduce air traffic by 10% across 40 “high-volume” markets beginning Friday morning to maintain safety during the ongoing government shutdown.

The Federal Aviation Administration announced the specific airports that will see flight cuts as the department seeks to maintain air safety across the nation, and Denver International made the

The government shutdown is taking a growing toll on air traffic controllers who are working without pay. Staffing shortages led to big delays over the weekend, raising concerns about travel chaos.

U.S. airlines have canceled more than 2,500 weekend flights mostly because of the government shutdown and the Federal Aviation Administration’s order to reduce air traffic