"We are considering the implications for our development and other assistance programmes in Pakistan," a spokesman for Prime Minister Gordon Brown told reporters. "We would like to see confirmation that elections will be held on schedule in January."
As foreign pressure built up on Musharraf, a lawyers' movement took to the streets in cities across Pakistan.
Police used teargas against stone-throwing lawyers in the eastern city of Lahore, and wielded batons to break up another protest by dozens outside the High Court in Karachi.
Several hundred lawyers, chanting "Go Musharraf Go" and "The dictator is unacceptable", protested outside the lower courts in Islamabad until police broke them up by force.
"We are not scared of these arrests. We will continue our fight, come what may," Karachi lawyer Abdul Hafeez, one of hundreds of lawyers arrested on Monday, told Reuters as police bundled him into a car.
SUSPECT MOTIVE
Many Pakistanis believe Musharraf's main motive in declaring emergency rule was to pre-empt a widely expected Supreme Court finding that the general had been ineligible to stand for re-election as president last month.
Several judges were held incommunicado at their homes after refusing to back emergency rule.
Among them was dismissed chief justice Iftikhar Chaudhry, who became a symbol of resistance to Musharraf's rule after defying pressure to quit in March.
"Everything that is happening today is illegal, unconstitutional and against the orders of the Supreme Court," he told daily paper The News.
There have also been mass detentions of political activists.
Qazi Hussein Ahmed, leader of the main Islamist opposition party, Jamaat-e-Islami (JI), was taken into custody on Monday. Authorities had already rounded up 600-700 JI supporters in southern and central provinces overnight.
Benazir Bhutto, leader of the single largest opposition party, has remained in Karachi since hurrying back from Dubai as the emergency was being invoked. She is expected in Islamabad by the weekend to rally support and speak to foreign diplomats.
Pakistan shares fell 4.6 percent, compounding losses incurred last week as talk of impending emergency rule swirled. Analysts said the uncertainty would put bonds under pressure.
"It is a shock from the market's perspective. Things were going in the right direction and then suddenly you have this complete reversal," said Dilip Shahani, a credit analyst with HSBC in Hong Kong. "Going back to democracy will take time now."
Since Pakistan was formed in 1947 by the partition of India that ended British colonial rule, the country has reeled from one crisis to another and spent half its 60 years ruled by generals.
