(CNN) -- Panicking passengers turned to prayer as a Cathay Pacific flight with one engine ablaze made an emergency landing in Singapore on Monday, witnesses said. "We heard a series of loud bangs, then smelled fire, and the aircraft started shaking uncontrollably," a CNN.com online commenter under the name of Augustus2002 said. "The noise on board was incredible, we could not hear any of the announcements of the crew," he added. CNN has not been able to confirm his account, but it matches a description from a Reuters photographer who was on the plane with his family. The photographer, Beawiharta, who uses only one name, told the news agency that his 15-year-old son spotted flames out the window of the twin-engine Airbus A330, which was on the way to Jakarta, Indonesia, but turned back after the engine problems began.
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NEW: Rolls Royce says it is aware of the incident and providing technical assistance
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Witnesses say they heard loud bangs, and passengers prayed
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The flight returned to Singapore after engine trouble en route to Jakarta, Indonesia
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Sparks were reported from the No. 2 engine and were doused after the plane landed
"Fire services met the aircraft on arrival," @placeholder's statement said.