A medical helicopter pilot in Boston is under investigation for allegedly falling asleep at the controls with a patient on board, according to a new report.

The Federal Aviation Administration is probing whether the Boston MedFlight pilot snoozed in the cockpit while transporting someone from Martha’s Vineyard to a Boston hospital on June 24, according to a statement obtained by CBS Boston.

The pilot overflew the designated helipad, and fatigue was determined to be a factor, Boston MedFlight said a statement.

“The transport was completed successfully and there were no injuries to the patient or flight crew,” CEO Maura Hughes said in the statement, adding that the pilot is no longer employed by the company.

Boston MedFlight has started to work with fatigue management and safety consultants to review its policies and procedures, Hughes said.

The company flies about 1,842 people in need of critical care each year — averaging about five flights a day, according to its website.