Tens of thousands of people have attended the funeral of assassinated Pakistani politician Benazir Bhutto.
Mourners converged on the family mausoleum where she was buried next to her father Zulfikar Ali Bhutto near their home village in Sindh province.
The coffin, draped in the flag of Ms Bhutto's party, was driven in a white ambulance through the dense crowds.
Pakistan's interior ministry has said it has clear evidence al-Qaeda was behind the assassination.
It quoted intelligence intercepts in a briefing to reporters that followed a reported claim of responsibility by al-Qaeda in Afghanistan.
It said Ms Bhutto had died of a fracture in her neck and had not been hit by either bullets or shrapnel, as reported earlier when a gunman attacked her car at an election rally in Rawalpindi on Thursday.
Pakistani security forces are on high alert, with at least 24 people killed in protests by Bhutto supporters across the country since the assassination.
Slogans and tears
On Friday, Ms Bhutto's plain wooden coffin was taken from the family home to the burial site 7km (four miles) away at the village of Garhi Khuda Bakhsh.
Amid weeping and beating of heads and chests, mourners jostled to see the coffin, which was accompanied by Ms Bhutto's husband Asif Ali Zardari and her three children.
Her father, also a former national leader, was hanged in 1979 by an earlier Pakistani military government.
Outside the triple-domed mausoleum, crowds chanted slogans blaming President Pervez Musharraf for Ms Bhutto's death.
The BBC's Owen Bennett-Jones, who is in the district of Larkana, says the mood among local people is one of anger and confusion.
Rioting and unrest has been reported across the country.
- Six bodies were found among the remains of a factory set on fire in Karachi
- At least one passenger train was set ablaze in Sindh Province and a number of railway stations were reportedly burnt as security forces in the province were ordered to shoot rioters on sight
- The office of a pro-government party was ransacked and set ablaze in Peshawar
- In the city of Multan in Punjab province, a mob ransacked seven banks and torched a petrol station
Other cities across Pakistan are at a virtual standstill.
Schools, businesses and transport are all closed, and people are reluctant to step out during the three days of national mourning declared by Mr Musharraf.
Musharraf under pressure
Plans for a general election on 8 January, for which Ms Bhutto had been campaigning when she was killed, remain unchanged, the government says.
Security forces have been out in strength in Sindh province
The election is meant to pave the way for a return to democratic rule, suspended in October 1999 when the then Gen Musharraf seized power through a coup.
Mohammedmian Soomro, the caretaker prime minister, said the government would consult other political parties on the election issue.
Ms Bhutto's political rival Nawaz Sharif, who was deposed as prime minister in the coup, has announced his party will now boycott the election, saying free elections were impossible under Mr Musharraf.
Another opposition politician, the former cricketer Imran Khan, joined Mr Sharif's call for Mr Musharraf's resignation, blaming the president for failing to provide adequate security for Ms Bhutto.
Father led Pakistan before being executed in 1979
Spent five years in prison
Served as PM from 1988-1990 and 1993-1996
Sacked twice by president on corruption charges
Formed alliance with rival ex-PM Nawaz Sharif in 2006
Ended self-imposed exile by returning to Pakistan in October
Educated at Harvard and Oxford
With all the opposition parties now against the election, it is hard to see how they will be a true test of the democratic process, the BBC's Karishma Vaswani reports.
Ms Bhutto, 54, was leaving the election rally in Rawalpindi, standing in the open sunroof of a car, when the attack happened.
Seconds later, the attacker blew himself up, killing at least 20 other people.
Ms Bhutto returned from eight years of self-imposed exile in October, following an amnesty agreed with President Musharraf.
Shortly after her return, she survived a double bomb attack on her convoy in Karachi which killed more than 130 people.
She accused rogue elements of the intelligence services of involvement in the attack.
The al-Qaeda commander in Afghanistan, Mustafa Abu al-Yazid, claimed responsibility for her assassination, according to the Asia Times newspaper.