Supporters seeking the release of imprisoned Pakistani former Prime Minister Imran Khan broke through a ring of shipping containers blocking off the capital on Tuesday, and battled security forces despite a government threat to respond with gunfire.

The demonstrations were sparked by demands for Khan’s release from jail and the resignation of the federal government over what they call rigged general elections this year.

The PTI claimed that the demonstrators while protesting against the military-backed regime faced tear gas shells, rubber bullets, and stun grenades during the protest.