Federal investigators have recovered both the cockpit voice recorder and flight data recorder from a passenger aircraft that collided with a fire-rescue truck at LaGuardia Airport, killing two pilots, the National Transportation Safety Board announced Monday.

NTSB Chairwoman Jennifer Homendy said during a news conference that investigators completed a safety walkthrough of the crash site to ensure personnel could safely examine the wreckage. The recovery of the flight recorders represents a crucial early step in the investigation into the deadly ground collision.

The Federal Aviation Administration is separately investigating whether air traffic control operations may have been a factor in the incident. According to reports, two controllers were working at LaGuardia's control tower at the time of the crash, with one controller dealing with an odor issue aboard a United Airlines aircraft.

The collision occurred on the ground at the New York-area airport, though specific details about the circumstances leading to the crash have not been released. The NTSB typically takes months to complete investigations into aviation accidents and determine probable cause.

The incident marks a significant ground safety event at one of the nation's busiest airports. LaGuardia Airport handles hundreds of flights daily and serves as a critical hub for air travel in the New York metropolitan area.