A passenger flight from Japan to Australia was forced to make an emergency landing in Guam today after a small fire broke out in the cockpit due to an electrical problem, the airline said. There were no injuries.

The Airbus 330-200 was the same type of plane that crashed last week in the Atlantic Ocean, but the incidents appear unrelated and an airline official said problem didn't raise any new safety concerns about the aircraft.

The Jetstar plane was about four hours into its flight from Osaka to Australia's Gold Coast when the pilots noticed a small flame and smoke in the cockpit near the window, spokesman Simon Westaway said. A pilot used a fire extinguisher to put out the fire, which did not spread to the cabin, he said.

The plane, which was carrying 190 passengers and 13 crew members, landed without incident at Guam International Airport. The passengers were expected to board another plane and finish their journey to Australia later Thursday.

David Epstein, General Manager for Government and Corporate Affairs of Jetstar's parent Qantas Airways, said the electric connector of the heating element in the cockpit had malfunctioned, causing sparks and smoke but the situation was quickly brought under control.

The heating element is used to ensure that the cockpit windows don't fog up as the plane flies in cold air at high altitudes, he said.

Epstein said the incident does not raise any new safety concerns about the A330-220.

Last week, an Air France A330-200 went down while flying from Brazil to France, killing 228 people on board. Investigators are trying to determine the cause of that accident.

"The failure of the electrical connector has no bearing on our flight control system and it doesn't raise any new safety concern about the (A330-200) plane," Epstein said.

He said such incidents were not uncommon, as it has happened before on one of Qantas Boeing 747 aircraft.

Passengers Adam Power and Michelle Foord said the smell of smoke wafted through the cabin, although they did not suspect a fire.

"Four hours into the flight, we smelt like, popcorn," Power told KUAM News television at Guam.

"It didn't smell like fire," Foord added. "Someone mentioned something about a window."

The Jetstar plane in question had begun flying in 2007, Epstein said.

Qantas was sending engineers to Guam Thursday to inspect the plane, which is under quarantine there, and the Australian Transport Safety Bureau will lead an investigation into the cause of the fire, he said.

An Airbus A320 experienced engine trouble shortly after taking off today from the Canary Islands and was forced to immediately turn around and make an emergency landing, Spain's national airport authority AENA said.

The Spanish Iberworld airliner was headed from Las Palmas on the island of Gran Canaria to Oslo, Norway, AENA spokeswoman Karen Martel said from the island.

No one was hurt and the plane was in the air about 10 minutes, she told The Associated Press.

Martel denied news reports that one of the plane's engines had caught fire, saying only it had undisclosed trouble.

She did not know how many people were on board but news reports reported 180.

The passengers were taken off the plane and the company planned to put them on a different one bound for Oslo at midday, Martel said.