Department of Transportation Secretary Sean Duffy is warning there could be “mass chaos” at airports across the country if the government doesn’t reopen soon.

Secretary Sean Duffy predicted Tuesday that there could be chaos in the skies next week if the government shutdown drags on and air traffic controllers miss a second paycheck.

The FAA will cut 10% of US air traffic at 40 major airports starting Friday if the government shutdown continues, citing severe air traffic controller shortages. Officials say the move aims to maintain safety as unpaid controllers call in sick,

The current government shutdown will become the longest in U.S. history if it continues into Wednesday.

The Transportation secretary said the department is working to ensure everyone remains safe despite the staffing shortages.

Secretary Duffy said there will be a 10% reduction in airspace capacity at 40 locations across the country as staffing shortages strain the FAA amid the longest government shutdown in history.

U.S. Transportation Secretary Sean Duffy is appearing at LaGuardia Airport Tuesday, where he is expected to discuss the ongoing federal government shutdown​'s impact on air traffic controllers, flight safety and delays.