Authorities say a Delta flight from Manchester, N.H., to Atlanta was forced to make an unscheduled landing in Boston over concern about an odor of fumes in the cabin.

Flight 1941 left Manchester-Boston Regional Airport at about 7:15 a.m. Friday with 144 passengers and five crew members.

Deputy Airport Director Brian O’Neil says an odor of fumes or possibly smoke caused the flight to be diverted to Logan Airport, where the plane landed safely. The MD 88 can carry more than 140 people.

In a statement, Delta Air Lines Inc. said the fumes were observed after takeoff and that the crew elected to land in Boston. Delta put passengers on other flights.

No one was hurt. It wasn’t immediately known what the problem was on the plane.