Thursday, Pakistani Interior Minister Rana Sanaullah announced that the government had authorized the deployment of army personnel in Islamabad, the capital city.

Local media said that hundreds of supporters of former Pakistani Prime Minister Imran Khan had arrived in Islamabad for a massive rally and were expected to march on parliament.

Sanaullah stated that troops would protect structures like the Supreme Court, parliament, prime minister's residence, and the presidency.

Police fired tear gas and fought with stone-throwing demonstrators who attempted to march to the parliament on Wednesday.

Although Khan urged his followers to find alternate routes, authorities had also shut all main roads before Wednesday's rallies.

The measures were announced after a police officer was killed during a raid on the home of a prominent Khan supporter on Tuesday.

Supreme Court overturns march ban.

The administration had attempted to halt the scheduled march, but the Supreme Court approved it Wednesday evening.

However, the court only permitted the gathering on specially designated public land. It also ordered demonstrators to disperse following Khan's address.

His attorney was also requested to ensure the protest's peacefulness.

Khan, who was dismissed from government in April following a vote of no confidence, had called for the demonstrations. The furious former prime minister seeks to overthrow the current administration and calls for early elections.

The former cricket star turned Islamist politician claimed that his removal and the subsequent installation of his successor, Shahbaz Sharif, were part of a Washington-organized scheme. The United States denied the claim.