Factbox-What has caused Pakistan's deadly clashes between police and supporters of Imran Khan?

Security force personnel guard a road to prevent an anti-government rally by supporters of the former Pakistani Prime Minister Imran Khan's party Pakistan Tehreek-e-Insaf (PTI) in Islamabad, Pakistan, November 26, 2024. REUTERS/Akhtar Soomro

(Reuters) - Thousands of supporters of Pakistan's jailed former Prime Minister Imran Khan marched on the capital Islamabad this week, breaking through barricades and clashing with police in response to his call for a sit-in protest.

Here is a look at what led to the protest and this chapter of political rallies in Pakistan: