PPP Chairman Bilawal Bhutto has said that extremism could only be tackled when the US stops supporting dictators in the region.

The son of slain Pakistani opposition leader Benazir Bhutto told reporters on Tuesday that Washington's support for dictators in the region was one of the factors behind the spread of extremism in the world; The News, a leading Pakistani daily reported on its web site.

"The family's and party's request is for a UN-sponsored investigation, because we do not believe that an investigation under the authority of the Pakistan government has the necessary transparency," Bilawal said, referring to the assassination of his mother.

He warned that rigged elections will lead to chaos in the country.

Bilawal said his mother's death had made him resilient, and adamant that democracy would be restored in Pakistan.

JR/RE