BOSTON, MA (CNN/WCVB) -- A fuel leak prompted the cancellation of a Japan Airlines flight out of Bostons Logan International Airport today.

A transportation official says the leak was discovered while the plane was getting ready to take off.

Airport workers were cleaning up the spill on the airfield. There was a notable incident at Logan yesterday as well. 

A fire broke out onboard a different Boeing 7-87 Japan Airlines Dreamliner Monday, but no passengers were on board.