Four security troops killed in Islamabad during protest for Imran Khan's release

Four Pakistani security troops were killed in Islamabad on Tuesday when a convoy of protesters demanding the release of former Prime Minister Imran Khan ran them over. Thousands of Khan's supporters marched, breaking through barricades. Prime Minister Shehbaz Sharif condemned the violence, labeling the protest as extremism. The interior ministry described the attackers as "miscreants" but did not provide further details. Khan's party, Pakistan Tehreek-e-Insaaf, is pushing for his release and the resignation of the government. The march was led by Khan's wife and a key aide, with demands including changes to recent constitutional amendments.