A Boeing 777 plane was forced to make an emergency landing in Moscow after encountering engine problems, the operating airline said – days after another model rained down engine debris in the U.S..

State-owned Rossiya airline said the crew had registered the "incorrect operation of the engine control sensor" on a cargo flight from Hong Kong to Madrid and "decided to make an emergency landing in Moscow" on Friday.

Online flight trackers confirmed the plane was a Boeing 777.

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The airline said the unscheduled landing went ahead without incident and no one was injured.

The plane was a 15-year-old 777-300ER, according to flight tracking website FlightRadar24, which means it has General Electric engines.

Those are different from the Pratt & Whitney PW4000 engines under scrutiny after an engine fire on a United Airlines 777 last Saturday, which led to debris falling over a suburb of Denver, Colorado. It prompted the suspension of operations involving planes using those engines.

General Electric did not immediately respond to a Reuters request for comment.

Russian airlines operate Boeing 777-300ER planes equipped with General Electric GE90-115B engines, federal aviation agency Rosaviatsiya said, adding it was not considering suspending operation of those aircraft.

Rossiya Airlines Flight 4520, traveling from Hong Kong to Madrid, touched down in Moscow at 4.44 a.m. local time, data from Flightradar24 showed.

Malfunctions in engines are not uncommon and most aircraft are designed to be able to fly for several hours on one engine until crew identify and land at the nearest available airport.

Investigators have attributed the Denver incident to a fan blade that broke off soon after take-off due to metal fatigue and apparently breached the engine cover, known as a cowling.