Four people on a plane died and two on the ground were injured after a small aircraft crashed into a building in Connecticut, according to authorities.

The Farmington Police Department (FPD) confirmedduring a press conferenceon Thursday that four people, including two pilots and two passengers, were on the plane at the time of the fatal crash.

The incident unfolded just before 10 a.m. on Thursday in Farmington, a spokesperson for the Federal Aviation Administration (FAA) confirms to PEOPLE.

First responders immediately rushed to the scene, where they found the “building and plane fully engulfed in flames,” the FPD said.

Police also noted that “witnesses reported seeing the plane having trouble shortly after takeoff” and that the aircraft hit the ground before striking the building and coming to a rest.

The FAA later determined that the Cessna Citation 560X business jet with four people aboard had departed from Robertson Field Airport in Plainville and was on its way to Dare County Regional Airport in Manteo, North Carolina when the crash happened.

During the takeoff sequence, the plane appeared to have experienced “some type of mechanical failure… that resulted in the crash,” police said during their press conference.

Ina statement on Facebook, Trumpf Inc. confirmed that the plane hit their Farmington production facility and injured two employees.

“At this time, all employees who were inside the affected building have been accounted for with two injuries reported,” the company wrote. “Additional information will be provided as it becomes available.”

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Several roads in the area were also closed after the deadly crash, per WVIT.

On Twitter, Connecticut Governor Ned Lamontsaid he was on his way to Farmington"to assess the recent plane crash with emergency management personnel."

“My prayers are with those on the ground and with the souls on board,” he wrote.

The FAA tells PEOPLE that they are investigating the incident along with the National Transportation Safety Board (NTSB).

source: people.com