ISLAMABAD, Pakistan -- President Pervez Musharraf said Wednesday he had asked for British help to investigate the assassination of Benazir Bhutto, as authorities pushed back crucial elections to Feb. 18, citing the unrest caused by her killing.
Opponents condemned the postponement but said they would still participate in the vote, which is seen as a key step in Pakistan's transition to democracy after years of military rule.
"We have decided to take part in the election," said Asif Ali Zardari, Bhutto's husband and now the leader of her Pakistan People's Party. "People should be peaceful and express their anger through their ballots."
In a nationally televised address, Musharraf said the death of the two-time prime minister was a great tragedy for Pakistan. He blamed "terrorists" for Bhutto's slaying.
"We decided to request a team from Scotland Yard to come," Musharraf said in the address. He added that he sent the request to British Prime Minister Gordon Brown, "and he accepted the request."
Scotland Yard said it was sending a small team of officers from the Metropolitan Police's Counterterrorism Command. British Foreign Secretary David Miliband said the team was due to leave Britain by the end of the week.
The government has resisted calls from Bhutto's party for an independent investigation by a U.N. committee, and Musharraf's agreement to accept help from British investigators appears to be a compromise step to address growing suspicions of a government cover-up.
The U.S. praised Musharraf for seeking British help.
"The United States Intelligence Community welcomes the Pakistani government's decision to ask Scotland Yard to assist in the investigation, so that ister Benazir Bhutto," said Director of National Intelligence spokesman Ross Feinstein.
Since Bhutto's Dec. 27 slaying, the government has come under harsh criticism for its security arrangements for her, its claim that an Islamic militant was behind her death, and its conclusion that it was the force of the blast and not gunshot wounds that killed her.
Musharraf accused "many miscreants and some political elements" of taking advantage of the tragedy to loot and plunder -- a reference to the rioting that has killed nearly 60 people and caused tens of millions of dollars in damage.
But he had reconciliatory words for Bhutto's supporters, saying their slain leader had wanted to promote democracy and end terrorism.
"My mission is also the same. I want to end terrorism and let democracy flourish. It is my conviction that the development and survival of Pakistan depends on it," he said. "We need to fight terrorism with full force, and I think that if we don't succeed in the fight against terrorism, the future of Pakistan would be dark."
"This is a time for reconciliation and not for confrontation," he said.
Musharraf said he had wanted elections to go ahead as planned on Jan. 8 but destruction of election offices in the rioting in Bhutto's home province of Sindh had made that impossible. He said he supported the decision to delay the vote until Feb. 18.
The decision was condemned by Bhutto's party, which said the government is not sincere in holding fair elections but that it would contest them anyway. The party of former Prime Minister Nawaz Sharif quickly followed suit.
"We will not leave the field open for the king's party under any circumstances," party spokesman Ahsan Iqbal told the AP, referring to the ruling party, which is allied to Musharraf.
Miliband urged the government to use the extra time to ensure the election would be clean.
"It is vital that the government of Pakistan makes full use of the extended period before elections are held to ensure that all necessary arrangements are put in place so that they are transparent and fair," he said.
The opposition alleged authorities were postponing the election to help the ruling party, amid expectations that Bhutto's group could get a sympathy boost at the polls. The ruling party could also suffer a backlash. Bhutto had accused elements within the group of plotting to kill her, a charge it vehemently denies.
Zardari's calls for restraint by Bhutto's supporters suggested that the party would call for street protests against the delay.
Election commission head Qazi Mohammed Farooq said the unrest had made it impossible to hold the polls on time.
"For a few days the election process came to a complete halt," he told reporters. As a result, the poll will be held on Feb. 18, not Jan. 8, he said.
Talat Masood, an independent political analyst, said the delay was "mostly about politics."
"The (election) problems are only confined to a few districts. Musharraf naturally thinks if a hostile parliament comes in he has no future."
Sharif's party reasserted its demand for Musharraf to resign.
"We will try to continue to make all parties join hands to force Musharraf from office and set up a neutral caretaker government," Iqbal said.
Spokesman Tariq Azim, from the ruling party, denied it would benefit from the postponement.
"Let's face it, a delay of a few weeks is quite understandable. We would have thought parties would go along with the decision of the election commission," he told Dawn News TV.
Pakistani troops, meanwhile, killed up to 25 suspected militants Tuesday in a remote region close to the Afghan border where al-Qaida and Taliban fighters operate. The fighting followed the abduction of four soldiers the same day, said army spokesman Gen. Waheed Arshad and an intelligence official. Security forces sustained no injuries in the clashes, which frequently break out in the area.
The government has blamed South Waziristan-based militant leader Baitullah Mehsud for Bhutto's murder, but he has denied involvement.
In his address, Musharraf did not explicitly blame Mehsud but he appealed to the media and Pakistanis to "expose" him and another prominent pro-Taliban militant leader Mullah Fazlullah, whom he also accused of orchestrating suicide attacks.
Also Wednesday, French Foreign Minister Bernard Kouchner met with Musharraf but canceled a planned trip to visit to Bhutto's hometown to pay condolences, a French Embassy official said on condition of anonymity because he was not authorized to comment. He did not say why.
Nisar Khuro, a senior member of Bhutto's party, alleged the government had stopped Kouchner from traveling there, citing security concerns. "It seems that Pervez Musharraf is stopping foreign dignitaries from coming for condolences," he said. "This is sad."
Later, Kouchner laid a wreath near where she died.
"I pay respect to the memory of a fighter for democracy and freedom," he said. "Her message and her bravery will never be forgotten."
Bhutto was popular with many Western governments because she was a liberal Muslim prepared to speak out against extremism, but critics in Pakistan often pointed to how her two stints as prime minister in the 1980s and 90s were marred by allegations of corruption and inefficiency.
Associated Press writers Sadaqat Jan in Islamabad and Zarar Khan in Naudero contributed to this report.