Federal investigators headed to Arkansas on Thursday to determine the cause of a small plane crash that killed five employees of an environmental consulting firm.

Investigators from the National Transportation Safety Board planned to begin work to document the crash site and examine the plane’s wreckage, agency spokesperson Jennifer Gabris said in an email.

5 KILLED IN ARKANSAS PLANE CRASH THAT HAPPENED SHORTLY AFTER TAKEOFF

Gabris said a preliminary report on their findings should be released in about two weeks.

A twin-engine Beech B2000 airplane crashed at about noon Wednesday near an industrial site in Little Rock shortly after taking off from the Bill and Hillary Clinton National Airport. The Pulaski County Sheriff's Office confirmed that all five people on board the plane were killed. The plane was heading to Columbus, Ohio.

SMALL PLANE CRASHES OUTSIDE FACTORY IN LITTLE ROCK, ARKANSAS

Environmental consulting firm CTEH, based in Little Rock, said the five dead, including the pilot, were all employees responding to the scene of an Ohio metals plant where an explosion this week killed one worker and sent more than a dozen to the hospital.

The crash occurred as a line of thunderstorms that the National Weather Service said included wind gusts of 40 mph moved through the Little Rock area. The NTSB said its investigators will be looking into whether weather and other factors played a role in the crash.