High alert sounded in Islamabad after Osamas death
Security has also been strengthened around the US consulates in Peshawar, Lahore and Karachi, Pakistani officials said.
Even the American school would be closed tomorrow as part of the security arrangement.
Interior Minister Rehman Malik chaired a meeting of top police, security and intelligence officials to review the security arrangements.
High alert was sounded across Islamabad following the meeting.
Official said security will be beefed up at all important buildings and authorities in four provinces have been directed to provide vigilance.
Special security measures were put in place soon after US President Barrack Obama announced killing of bin Laden.
The al-Qaeda chief was killed early on Monday by US special forces in a helicopter-borne operation at Abbottabad near the Pakistani capital, climaxing a over 10-year long massive manhunt.