Newark Liberty International Airport is facing another FAA-imposed ground delay due to staffing shortages, after a telecommunications issue led to delays on Sunday.

Airline executives, Transportation Secretary Sean Duffy, and officials from the FAA are meeting Wednesday to discuss how to address issues facing New Jersey's Newark Liberty International Airport.

Federal Aviation Administration officials and Secretary of Transportation Sean Duffy are at separate hearings Wednesday morning on Capitol Hill, as cancellations and delays continue to plague Newark International Airport and impact other airports around the country.

Sean Duffy said it is safe to fly, but major outages such as the ones in Newark could still pose “a risk to life” and must be swiftly resolved.

U.S. Secretary of Transportation Sean Duffy is under fire for deflecting blame over the escalating crisis at Newark Liberty International Airport—issues his department has yet to resolve. Critics point to his references to “cracks in the system” nationwide and a so-called “Brand New Air Traffic Control System Plan” that,

Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.

Similar to last summer, there is currently a nationwide shortage of air traffic controllers, which will “take time” to replenish, according to Transportation Secretary Sean Duffy.

Transportation Secretary Sean Duffy said he has a plan to upgrade old air traffic control tech but warned more flight disruptions could come first.