Supporters of Imran Khan were planning to march to Islamabad on Wednesday where the former Pakistan prime minister is in custody in a corruption case, raising fears of more clashes with security forces.
Khan was arrested from the Islamabad High Court on Tuesday by Pakistan's anti-corruption agency. Police said a court hearing would take place at the police guest house where he is being held.
The arrest came a day after the country's powerful military rebuked Khan for repeatedly accusing a senior military officer of trying to engineer his assassination and the former armed forces chief of being behind his removal from power last year.
In response, his Pakistan Tehreek-e-Insaf party called for a "shut down" across the country, with Khan's supporters clashing with police in many cities and storming military buildings in Lahore and Rawalpindi, according to witnesses and videos shared by his party.
Supporters in northwestern Khyber Pakhtunkhwa province were asked to gather early on Wednesday in Swabi city to leave for Islamabad as part of a convoy, the party wrote on Twitter.
Party leaders asked workers to continue protests but not take the "law in their hands", according to messages shared on Twitter on Wednesday.
A police spokesman told Reuters on Wednesday that Khan will not be brought to court and his scheduled hearing will take place at the location where he is being held under custody.
United Nations Secretary-General António Guterres has announced the establishment of a dedicated task force to address current challenges related to navigation in the Strait of Hormuz, with the aim of securing global humanitarian needs.
The US expects its operation against Iran to conclude within weeks, not months, and Washington can meet all its objectives without using ground troops, US Secretary of State Marco Rubio said on Friday.
Iran-linked hackers have broken into FBI Director Kash Patel's personal email inbox, publishing photographs of the director and other documents to the internet, the hackers and the bureau said on Friday.
US President Donald Trump said he would again extend a deadline for Iran to reopen the Strait of Hormuz or face the destruction of its energy plants, after Tehran earlier rejected a 15-point US proposal to end the fighting.
More than 370,000 children have been forced from their homes in Lebanon in just three weeks, as intensified Israeli strikes and mass evacuation orders trigger one of the fastest and largest population displacements in the country's history, UN officials said on Friday.