The Federal Aviation Administration said on Friday it will investigate a Southwest Airlines flight that departed from a temporarily closed runway in Maine earlier this week.

The FAA said on Tuesday an airport vehicle exited the runway before Southwest Flight 4805, a Boeing 737, began its takeoff roll and departed around 5:45 a.m. local time (0945 GMT). Southwest said it is engaged with the National Transportation Safety Board and FAA to understand the circumstances of the departure. After the incident the plane continued safely to Baltimore, Southwest said.

(Reporting by David Shepardson; Editing by Sharon Singleton)