Pakistani police on February 24 detained dozens of political workers in Karachi who staged protests outside the provincial assembly in the southern Sindh Province against alleged fraud in February's general elections.
Protesters had gathered in front of the assembly building ahead of the swearing-in of newly elected members.
The police also baton-charged the protesters.
Out of 168 members of the Sindh provincial assembly, 148 took their oath.
The Grand Democratic Alliance (GDA), Jamiat Ulema-e-Islam-Fazl (JUI-F), Jamaat-e-Islami (JI), PTI and Muhajir Qaumi Movement (MQM-Haqiqi) had announced plans for a joint protest outside the Sindh assembly.
Sindh's provincial government on February 23 invoked Section 144 of the criminal code in anticipation of the protest, citing concerns about security and order. That section prohibits gatherings of five or more people and bans public assemblies, gatherings, protests, processions, or demonstrations.
The Sindh showdown comes against a backdrop of national political tension following a power-sharing agreement to allow rivals of imprisoned former Prime Minister Imran Khan to pick a candidate for prime minister, Shehbaz Sharif, and president.
The Pakistan Muslim League, the Pakistan People’s Party, and smaller parties after the February 8 vote announced on February 20 that they had secured a majority to support a coalition government.