Jailed former prime minister Imran Khan’s supporters reached the heart of Pakistan’s capital on Tuesday after removing barricades and battling police in clashes that killed six security personnel and injured dozens.

Four paramilitary Rangers and two policemen were killed late Monday and over 100 security personnel injured when protesters marching towards D-Chowk turned violent, prompting the federal government to deploy the army in Islamabad along with shoot-at-sight orders.