This post has been updated with new details about the crash.

A helicopter crashed near Baltimore-Washington International Marshall Airport on Saturday, sparking a brush fire that temporarily delayed Amtrak and MARC commuter rail service but had no impact on airport operations, officials said.

The crash happened just before 1 p.m. according to Whitney Kidd, a BWI spokeswoman.

Lt. Ariel Jackson, spokesman for the Anne Arundel County Fire Department said the three people aboard the Bell 206 Jet Ranger helicopter were taken to area hospitals with non-life threatening injuries. The helicopter had been doing survey work for Baltimore Gas and Electric when it crashed. Cause of the crash is currently under investigation by Maryland State Police and the National Transportation Safety Board.

The Maryland Transit Administration via Twitter said that the crash is causing service delays. Amtrak service also has been halted between Washington, D.C. and Baltimore.

Officials said they had no estimate for when service would return to normal.

Jackson said crews, including those from BWI’s fire and rescue department, are struggling to put out the blaze because the helicopter went down in an area near the train tracks that is difficult for large pieces of fire equipment to reach. He estimated that five to six acres already have burned.