Supreme Court orders arrest of Pakistan PM Raja Pervez Ashraf
15 January 2013 Last updated at 22:41 GMT
Pakistan's Supreme Court has ordered the arrest of PM Raja Pervez Ashraf and 15 others over corruption allegations, raising fears of a political crisis just months ahead of an election.
Mr Ashraf denies accepting bribes when approving power generation projects as minister for water and power in 2010.
The protesters want to government to stand down.
Orla Guerin reports from Islamabad.