A march by hundreds of supporters to demand the release of jailed former Prime Minister Imran Khan reached the fringes of Pakistan’s capital of Islamabad on Monday.

Axar.az reports that, citing Reuters, authorities have enforced a security lockdown for the last two days to block the protesters, whom Khan has called on to march on parliament for a sit-in demonstration, while highways into the city have been barricaded.

The government has used shipping containers to block major roads and streets in Islamabad, most of them patrolled by large contingents of police and paramilitary personnel in riot gear.

Voted out of power by parliament in 2022 after falling out with Pakistan’s powerful military, Khan faces charges ranging from corruption to instigation of violence, all of which he and his party deny.