NEWARK, New Jersey (WABC) -- So far on Monday, Newark Liberty International Airport reported nearly 50 flight cancellations and more than 60 delays.

Some 2,700 flights were canceled on Sunday, including 204 out of Newark, 163 at LaGuardia and 68 at JFK.

Airlines are scaling back flights at dozens of major U.S. airports to ease the pressure on air traffic controllers, who have been working unpaid and under intense strain during the ongoing government shutdown.

The Federal Aviation Administration says the decision is necessary to keep travelers safe. Many controllers have been working long hours and mandatory overtime, while lawmakers remain at a standstill over how to reopen the government.

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