“This tragedy is traumatic for all involved,” said Bangor International Airport in Maine

The bodies of six people killed in a private jet crash at Maine’s Bangor International Airport earlier this week have finally been removed.

A spokesperson for the Maine Office of Chief Medical Examiner told PEOPLE on Thursday, Jan. 29, that the department “has all decedents from the plane crash in Bangor. We are actively attempting to confirm identities and hope to have more information by the end of day tomorrow [Friday, Jan. 30].”

News of the recovery comes four days after the Bombardier Challenger 650 crashed during takeoff at about 7:45 p.m. local time on Sunday, Jan. 25, the Federal Aviation Administration said.

According to an updated FAA accident notice, six people died in the incident. Four of the deceased were passengers, while the other two on board were flight crew. There were no survivors.

Officials have not formally shared the names of the victims, though some of those who were on the plane have been identified.

Shawna Collins, Jacob Hosmer, Tara Arnold.Shawna Collins/Instagram; Jacob Hosmer/Facebook; Arnold & Itkin LLP

Jacob Hosmer was the captain of the flight, NBC affiliate KPRC reported. The Houston-area pilot, 47, was confirmed to have been among those killed by his father, Gary.

The plane he was flying was registered to a company with a Houston address shared with the personal injury law firm Arnold & Itkin, Reuters previously reported. Hosmer had Houston-based injury law firm Arnold & Itkin LLP listed as his employer on LinkedIn.

Though the firm’s founders, Kurt Arnold and Jason Itkin, reportedly were not on the aircraft, ABC affiliate KTRK said Kurt’s wife, attorney Tara Arnold, was killed too, citing sources.

Shawna Collins’ daughter said her mom was also on board the aircraft, according to the outlet. The event planner reportedly spoke to her daughter just before the flight. The victim was a staff member at Joel Osteen’s Lakewood Church, the Houston Chronicle reported.

On Tuesday, Jan. 27, chef Nick Mastrascusa was identified by his wife as the fourth victim in the crash, according to KTRK.

Meanwhile, the FAA and investigators with the National Transportation Safety Board have been at the scene of the accident and are beginning the initial phases of the investigation, the airport said in a news release shared on Tuesday.

Officials said the Bombardier Challenger 650 arrived at the airport from Houston to receive fuel and was bound for Paris-Vatry Airport in France when the crash happened.

At a press conference on Wednesday, Jan. 28, Jose Saavedra, the airport’s director, said that the extreme weather conditions on the airfield had been impacting the progress of the investigation.

“In addition,” he said, “the storm delayed the arrival of the FAA and NTSB investigators and other recovery teams arriving to the scene. Some of them are still en route, which is also impacting the expedited removal of the aircraft from the airfield.”

The crash occurred as snow began falling at the airport, amid poor weather conditions in the region, Reuters and CBS affiliate KHOU reported. However, it’s unclear if the weather played a role in the incident.

In an email to PEOPLE on Thursday, the NTSB said the wreckage has been recovered to a secure facility for further examination. Additionally, the flight data recorder and cockpit voice recorder had also been recovered and sent to NTSB headquarters in Washington, D.C., for analysis.

The agency also said the investigations will look at three primary areas: the pilots, the aircraft, and the operating environment. A preliminary report is expected within 30 days.