Intelligence agencies detained more than 20 activists of the banned Hizb-ut-Tahrir in Lahore on Thursday on suspicion of involvement in making a video that accused Pakistan Army chief Gen Ashfaq Parvez Kayani of "treachery".
Intelligence operatives raided a house in C-Block of the posh Model Town area and detained the Hizb-ut-Tahrir activists, official sources told PTI.
The operatives seized computers, CDs and literature from the possession of the detained activists.
"The intelligence agencies picked up the Hizb-ut-Tahri men as the organisation had posted a video on the Internet that spoke about army chief Gen Kayani's treachery in the war on terror," a source said.
Hours before the raid, a Hizb-ut-Tahrir spokesman sent SMS messages to journalists in Lahore and Islamabad that contained a link to the video posted against the army chief.
The arrested Hizb-ut-Tahrir activists were taken to an undisclosed location for interrogation, sources said.
Since the killing of Osama bin Laden in a raid by US special forces in Abbottabad in May last year, the Hizb-ut-Tahrir has been accused of fomenting unrest in the Pakistan Army.
The organisation distributed pamphlets in cantonments that urged soldiers to rise up against their officers.