NEW YORK >> A power outage in a terminal of New York’s John F. Kennedy International Airport stretched into a second day Friday after forcing some flights to be canceled or diverted, including one that was turned around and sent back to New Zealand after nearly making it to the U.S.

The airport’s operator said Terminal 1, which handles some of the airport’s international flights, would remain closed Friday “due to electrical issues,” but that limited operations could resume Saturday.

The outage was caused by an electrical panel failure that led to a small fire, authorities said.

The Port Authority of New York and New Jersey, which runs New York’s major airports, said it was working to accommodate affected flights at JFK’s four other active terminals.

The agency said 39 of the 64 flights scheduled to arrive or depart from Terminal 1 on Friday were canceled, 13 were operating from other terminals and 12 were being routed through other airports.

“The Port Authority continues to work with Terminal 1’s operator to complete repairs, restore power and resume flight operations at the terminal as soon as possible,” agency spokesperson Alana Calmi said.

Air New Zealand officials said its flight turned back to Auckland because diverting it to another U.S. airport could have stranded it where it couldn’t make planned connections with other scheduled passengers.