Chief of Army Staff (COAS) Gen Qamar Jawed Bajwa on Monday confirmed the death sentences awarded to four 'hardcore terrorists' tried by military courts, according to an Inter-Services Public Relations statement.

The convicts were involved in "heinous offences related to terrorism, including killing of innocent civilians, officials of Law Enforcement Agencies and Airport Security Force," ISPR said.

They planned and executed attacks on Jinnah International Airport Karachi, CID building Karachi, Inter-Services Intelligence (ISI) office Sukkur and a convoy of Law Enforcement Agencies, ISPR said.

The convicts were involved in killing of 58 people including Senior Superintendent Police (SSP) Chaudhry Muhammad Aslam and wounding 226 others including SSP Farooq Awan. Firearms and explosives were recovered from the convicts' possession, ISPR said.

Chaudhry Aslam, Karachi's top cop, was killed when a suicide bomber targeted a convoy of police vehicles in 2014. The attack was claimed by the Mohmand Agency chapter of the Tehreek-i-Taliban Pakistan.

Explore: In depth: Chaudhry Aslam

This is the first time COAS Gen Qamar Jawed Bajwa has confirmed the death sentences of 'hardcore terrorists'. The development comes as the power of military courts to try civilians is likely to end in a month as the government does not appear interested in extending the relevant amendment to the Constitution, which will lapse on Jan 2.

Read more: Military court trials of terror cases set to end on Jan 2

The details of the convicts shared by ISPR are below:

Three convicts Attaur Rehman s/o Faqir Muhammad, Muhammad Sabir s/o Alaf Gul and Muhammad Farooq Bhatti s/o Muhammad Ishaq were members of proscribed organisations.

They were involved in attacking innocent civilians, LEAs ISI officials and Jinnah International Airport, which resulted in deaths of 58 individuals including SSP Chaudhry Muhammad Aslam.

As a result of these terrorist attacks, 226 persons including SSP Farooq Awan also sustained injuries. These convicts admitted their offences before the Magistrate and the trial court. They were awarded death sentences.

Gul Zareen s/o Gul Sharif: The convict was a member of proscribed organisation. He was involved in attacking police officials, which resulted in death of police constable Sartaj, police constable Ahmed Khan and injuries to 10 others including SSP Farooq Awan. He was also found in possession of fire-arms and explosives. The convict admitted his offences before the Magistrate and the trial court. He was awarded death sentence.