Atlanta, Georgia (CNN) -- A passenger plane made an emergency landing at Hartsfield-Jackson International Airport on Saturday night after the pilot reported smoke and a possible fire in the cockpit, officials said.
The pilot of the Delta aircraft put out the "very minor" fire himself after landing the plane, Atlanta City Fire Department Capt. James Dorsey said. No injuries were reported.
The Delta flight, which had 107 passengers and five crew members onboard, was flying from Atlanta to Hartford, Connecticut, when pilots smelled something unusual in the cockpit and decided to return to Atlanta, Delta spokeswoman Chris Kelly said.
Crew members used an extinguisher to put out the small fire that occurred in the cockpit after the plane had landed, Kelly said.
Dorsey said the fire was related to electrical equipment.
Delta was investigating the incident to determine the cause, Kelly said late Saturday.
She said all passengers had gotten off the plane and the airline was securing another aircraft to take them to Hartford.
CNN's Greg Morrison and Deborah Doft contributed to this report.