The National Transportation Safety Board announced it is investigating a close call between two commercial aircraft at Newark Liberty International Airport on Tuesday evening.

The incident involved an Alaska Airlines Boeing 737 passenger jet and a FedEx Boeing 777 cargo plane during landing operations. According to federal authorities, the two aircraft came dangerously close to each other while operating on what sources described as crossing or intersecting runways.

The close call occurred during evening hours on Tuesday as both planes were conducting landing procedures at the busy New Jersey airport. Newark Liberty International is one of the three major airports serving the New York metropolitan area and handles significant passenger and cargo traffic daily.

Federal aviation safety investigators have launched a formal probe into the circumstances surrounding the incident. The NTSB routinely investigates aviation incidents and close calls to determine contributing factors and recommend safety improvements.

Neither airline immediately responded to requests for comment about the incident. The investigation will examine factors including air traffic control communications, weather conditions, and pilot actions during the event.

This incident adds to ongoing concerns about runway safety at major U.S. airports, where increasing air traffic volumes have led to heightened scrutiny of close call events between aircraft.