Johannesburg - A South African soldier was killed and another seriously injured in an attack by gunmen on their unit in the conflict-hit western Sudanese province of Darfur, the South African defence department said Thursday.

The troops were about 3 kilometres from their base at Kutum in the north of the province on Wednesday when unknown gunmen approached them at a water point and opened fire, defence forces spokesman Brigadier General Kwena Mangope told Deutsche Presse-Agentur dpa in Johannesburg.

Nairobi, Niamey - The French arm of the charity Doctors Without Borders (MSF) said Thursday it would withdraw from Niger after being unable to clarify exactly why its operations were suspended three months ago.

MSF has been appealing to the government to allow it to resume work treating malnourished children in the Maradi region, where its work was banned from operating in July.

However, MSF said the government, which accused the charity of exaggerating the number of malnourished children in the region, had ignored all its requests, leaving it no choice but to withdraw.

Vienna - Josef Fritzl, the Austrian accused of having raped and imprisoned his daughter, has said he also kept his mother locked up in his house, Austrian media reported Thursday.

According to members of his family, Fritzl, 73, frequently insulted his mother and locked her up in a room in his house, where she died in 1980. He also bricked up the room's window, News magazine reported.

Police discovered last spring that the suspect had kept his daughter Elisabeth Fritzl, 42, in a cellar at his home in Amstetten for 24 years, where he had seven children with her.

Tokyo - Japanese Prime Minister Taro Aso on Thursday announced a new economic stimulus package worth about 26.9 trillion yen (276.33 billion dollars) to battle the impact of the global financial crisis.

"The most important thing is to allay concerns about people's livelihoods," Aso said at a press conference.

The government stimulus package, the second since August, includes 2 trillion yen in financial assistance for all households to jump-start consumption and up to 6 million yen in tax breaks for housing loans for 10 years.

Pamplona - Several people were injured on Thursday in a car- bomb attack in the northern Spanish city of Pamplona, local authorities reported.

A vehicle exploded in a car park in the grounds of the University of Navarra in Pamplona, capital of the Navarra province which borders on the separatist Basque region.

Witnesses said several vehicles were set on fire by the explosion, and nearby buildings were substantially damaged.

Baghdad - Iraq will sign a long-term security agreement with the US only if the latter agrees to compromise on Iraqi-proposed amendments, the semi-official al-Sabah newspaper said Thursday.

The Iraqi government had handed the US embassy in Baghdad an amended draft on Tuesday, although both parties had agreed in mid- October that the last draft was final.

The changes proposed by the cabinet would clarify under what circumstances US troops would be answerable to Iraqi law.