Police on Tuesday claimed to have arrested a suspect in Parveen Rehman murder case from Manghopir area of Karachi.

Senior Superintendent of Police (SSP) West Muhammad Younis Chandio informed Dawn that a hand grenade and a 30-bore pistol were recovered from the possession of the accused, who has been identified as Amjad Hussain.

A first information report, that includes Clause 7 of the Anti-Terrorism Act and Section 4/5 of the Explosive Substances Act, was registered against the accused at Manghopir Police Station.

Also read: Perween Rahman's murder: the great cover-up

Parveen Rehman, a media-shy social worker who devoted her life to the development of the impoverished neighbourhoods across the country, was gunned down near her office in Karachi's Orangi Town on March 13, 2013.

The very next day, police killed a Taliban operative named Qari Bilal in an encounter and claimed he was the murderer, resulting in a closure of the case.

The Supreme Court of Pakistan in April 2014 ordered authorities to conduct a fresh probe into Parveen Rehman's murder after a judicial inquiry had revealed that police officers had manipulated the investigation.