(NewsNation) — One of California's busiest airports was left with no air traffic controllers as the government shutdown continues.

The control tower at Hollywood Burbank Airport did not have staff from 4:15 p.m. to 10 p.m. local time on Monday, according to The Los Angeles Times. Outgoing flights were delayed an average of two hours and 31 minutes because of the shortage, and 12 flights were canceled.

Burbank had to look to San Diego for air traffic controllers to make sure flights could take off and land safely while it experienced the shortage.

The issues at Burbank are not isolated, however. Delays in airports have been felt nationwide, with Newark's airport seeing delays at a 19% rate. Airports in Denver, Vegas, Phoenix and Detroit have also reported similar issues.

More than 4,000

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