KARACHI: Police in Karachi have nominated Tehrik-i-Taliban (TTP) chief Mullah Fazlullah in the FIR for the bombing that killed senior police officer SP CID Chaudhry Aslam Khan and his two guards earlier this week.

The FIR was registered at the PIB Colony police station nominating both the TTP chief and spokesman Shahidullah Shahid for the alleged killing.

The banned militant organisation had accepted responsibility for killing the senior police officer, touted by some as “the bravest anti-terror cop” in the country.

Police authorities investigating the Thursday bomb attack concluded that a suicide bomber had rammed his explosives-laden pickup into the slain police officer’s bulletproof SUV when his motorcade was passing through the Lyari Expressway.

The police had earlier believed that it was a remote-controlled blast. However, the investigators found human remains at the scene of crime and a hospital examination showed that the pieces were of some unidentified person, suspected to be the suicide bomber.

Since the suspected bomber’s both hands were intact, he was identified through his fingerprints by Nadra records as 36-year-old Naeemullah, son of Rafiullah and a resident of the Pirabad area. Police said Naimullah’s father Rafiullah was the caretaker of a local madressa (Islamic seminary).

Security agencies have taken both the suspected suicide bombers father and brother under arrest.

Police said the elder brother of the alleged suicide bomber was murdered in Karachi after he returned from Khyber Pakhtunkhwa, also to carry out a failed suicide bombing.

Authorities are still carrying out further investigation.