A United Airlines jet flying from Honolulu to Guam with 348 people on board was forced to land on Midway Island in the Pacific after a mechanical problem, the airline said. The Boeing 777 landed late Thursday at Midway, an atoll about a third of the way along the 3,800-mile route. The airline did not describe the problem. A new jet was sent to Midway and flew the passengers back to Honolulu on Friday morning and a new flight to Guam left later Friday, United said. Midway was the scene of ferocious fighting during World War II. Henderson Field there still serves as an emergency runway.

In another incident involving a Boeing 777, American Airlines said a flight from London to Dallas-Fort Worth was forced to land Friday evening in Tulsa, Okla., after trouble with the left engine. An emergency was declared and the flight landed safely at 6:32 p.m. local time (7:32 p.m. ET), the airline said in a statement. Another aircraft was sent to pick up the 230 passengers. Fourteen crew members had also been on board.

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— Gil Aegerter