At least 10 more people have been killed and 21 others injured as sporadic clashes continued between Sunni and Shia tribes despite a cease-fire brokered between the two warring communities in Pakistan's restive northwest,

Pakistan’s police on Monday fired tear-gas shells and used baton charges as thousands of supporters of jailed former prime minister Imran Khan tried to storm the capital at protest seeking his release.

Shi'ite and Sunni Muslims have engaged in rivalry for decades over a land dispute in Kurram district near the Afghanistan border.

Protests in Pakistan turned violent this week as one police officer was killed and dozens of other people were injured. Pakistani police on Monday used tear gas to disperse supporters of jailed former Prime Minister Imran Khan as they attempted to enter the capital for a planned sit-in demanding his release,

Government officials met with tribal leaders in northwestern Pakistan on Sunday to try to mediate a ceasefire between rival sectarian groups after days of clashes that have killed at least 68 people and injured dozens.

The violence began on Thursday, when gunmen attacked convoys of Shia Muslims travelling through the area under police escort. More than 40 died in that incident, which triggered revenge attacks. Shia and Sunni Muslims have engaged in tribal and sectarian rivalries over land disputes for decades.