Forty-four people have been killed and eight injured in a plane crash in north-western Russia, officials say.

俄罗斯官方发布消息称，一家飞机在西北部地区坠毁，44人死亡、8人受伤。

The aircraft attempted to land on a motorway¹ about 1km (0.6 miles) from Petrozavodsk airport in the republic of Karelia, but crashed and caught fire.

The Tupolev Tu-134 operated by RusAir was carrying 43 passengers and nine crew. Most of the survivors² are said to be in critical condition in hospital.

The plane came down while flying from the capital, Moscow, to Petrozavodsk.

It just missed houses built close to the motorway. One source told the Interfax news agency that bodies were strewn（散播的） over the road.

A mobile phone video of the scene shortly afterwards showed flames soaring from the wreckage³ into the night sky.

'Unfavourable weather'

The lifenews.ru website published a full list of the passengers and the names of the survivors. There were reports that one of those killed was a Swedish national.

The emergency situation ministry⁴ said the survivors included a 10-year-old boy and a female flight attendant.

Radio contact with the pilot was lost at 2340 local time (1940GMT) on Monday, the ministry said.

There was no immediate⁵ explanation for the crash, but Interfax quoted the airport's director as saying there had been "unfavourable weather conditions", with the aircraft making its final descent（下降，血统） in thick fog and heavy rain.

Some reports even suggested a power cut had extinguished the high-intensity landing lights on the runway, which are deployed⁶ at times of low visibility, moments before the crash.

The flight recorders have been recovered and a team of accident investigators⁷ has flown to the scene from Moscow.

Prosecutors⁸ say an investigation⁹ into possible violations¹⁰ of air transport rules is under way.

RusAir is a privately-owned, Moscow-based airline that specialises in charter flights in western Russia and eastern Europe.

The twin-engined Tupolev Tu-134 is one of the work-horses of the Russian aviation（航空） industry.