KARACHI: Rangers officials on Wednesday claimed to have arrested the primary suspect involved in the murder of slain Pakistan Tehreek-i-Insaf (PTI) leader Zohra Shahid Hussain.

Acting on a tip-off, Rangers personnel conducted a targeted operation in the surrounding areas of Teen Talwar in Clifton and arrested suspect, Kaleem, who was wanted in several cases of murder, said a spokesperson from the paramilitary force.

The Rangers spokesman said that weapons were also seized from the suspect's possession.

The suspect, who has been shifted to an undisclosed location, is being interrogated further.

Last year in September, police had arrested a man suspected of involvement in the murder of Zohra Shahid.

Take a look: Police arrest suspect in PTI leader Zohra Shahid murder probe

The PTI leader was gunned down in Defence Phase-IV on May 19, 2013 on the eve of re-polls in Karachi’s NA-250 constituency.

Read: PTI senior leader Zahra Shahid killed on eve of Karachi re-polls

Before choosing her political career, she was associated with Karachi University’s international department as its faculty member. She taught there until the 1980s. Zahra Shahid was the former president of the party’s Sindh Women’s wing and was also one of the founding members of PTI.

Examine: Murder of PTI leader was targeted killing: police

PTI Chairman Imran Khan had accused Muttahida Qaumi Movement (MQM) Chief Altaf Hussain for Zohra's killing as Altaf had openly threatened PTI activists and leaders through public broadcasts. Imran had also held the British government responsible for the ‘murder’ of Zohra Shahid saying he had warned them about British citizen (Hussain) after his open threats to PTI workers’ lives.

Rangers personnel have stepped up operations in Karachi. Last week, paramilitary force personnel raided MQM headquarters in Karachi's Azizabad neighbourhood during which a number of arrests were made. Furthermore, arms and ammunition were also recovered during the crackdown.

View more: Rangers raid MQM HQ in Karachi, detain member of Rabita Committee