Police fire tear gas after At least 8,000 of protesters threaten to march on Nawaz Sharif 's house . PM said in a statement that he wo n't resign . Protesters have been in Imran for Thursday .
Police fire tear gas after thousands of protesters threaten to march on PM 's house . Nawaz Sharif said in a statement that he wo n't resign . Protesters have been in Islamabad for the last two weeks .