BOSTON (AP) — The smell of burning bread crumbs has forced a Miami-bound American Airlines flight to return to Boston.

An airlines spokeswoman says Flight 1532 took off from Boston’s Logan International Airport at 6:36 a.m. Sunday, but passengers soon began smelling smoke.

The plane returned to Boston at 7:10 a.m., and the smell was found to be from bread crumbs burning in an oven. The oven was cleaned, and the flight took off again at 8:20 a.m.

The plane was carrying 150 passengers and five crew members.