Haider 'was double speed limit'
The accident occurred near the city of Klagenfurt
Austrian far-right politician Joerg Haider was driving at twice the speed limit when he died in a crash early on Saturday, court officials have said.
Mr Haider, 58, was travelling alone at 142km/h (88mph) in a 70km/h zone when his Volkswagen Phaeton V6 crashed.
The accident occurred south of Klagenfurt, the capital of Carinthia, where he was the provincial governor.
He was leader of the Alliance for Austria's Future, and was known for his anti-immigration and anti-EU policies.
Mr Haider had crashed shortly after leaving a nightclub.
However, prosecutor Gottfried Kranza would not say whether Mr Haider's body had tested positive for alcohol.
JOERG HAIDER: KEY DATES
1950: Born in Upper Austria
1976: Joins Freedom Party
1986: Elected party's leader
1989: Elected governor of Carinthia
2000: Resigns as party leader
2005: Founds Alliance for Austria's Future
Mr Haider's car overturned a number of times, causing him serious head, chest and spinal injuries. He died on the way to hospital.
Mr Haider had reportedly been due to attend his mother's 90th birthday celebrations later in the day.
The Alliance for Austria's Future (BZO) was one of two right-wing parties that did better than expected in general elections last month, fuelling speculation of a possible role in a ruling coalition.
"For us this is the end of the world," BZO deputy leader Stefan Petzner told Austrian news agency, APA.
Austria's President Heinz Fischer said Mr Haider's death was a "human tragedy", while Chancellor Alfred Gusenbauer described him as someone who had shaped Austria's domestic and political landscape over decades.
On Saturday, residents of Klagenfurt left candles and messages of condolence outside the governor's office.
Mr Haider was a divisive figure, who gained notoriety after he became leader of the Freedom Party in 1986.
In 1991, his term as governor of the province of Carinthia was interrupted, after he made comments praising employment policies of Nazi Germany.
But he was re-elected in 1999 and 2003.
In 2000, the EU imposed sanctions against Austria in a protest over his party's role in government.
In 2005, Mr Haider left the Freedom Party and founded the Alliance, which scored its best result so far in elections last month, gaining 11% of the vote.
This was, however, well below the 27% that the Freedom Party won under his leadership in 1999 - a high mark in Mr Haider's electoral career at national level.
"With his passing, Austria has lost a great political figure," said Heinz-Christian Strache, who had taken over as leader of the Freedom Party after Mr Haider left.