A judicial magistrate in Karachi on Monday granted police two-day physical remand of the prime suspect involved in a fatal gun attack at Karachi's Do Darya a day earlier in which one youth was killed and another injured.

Read more: Student killed, another injured in firing after accident near Karachi's Do Darya

Two youths travelling in a Mercedes were on their way to have breakfast at the beach when they had a minor accident, Superintendent Police Clifton Dr Asad Malhi had told Dawn earlier.

After the accident, suspects travelling in a double-cabin vehicle had opened indiscriminate fire on the car at around 9am.

As a result, the two passengers had sustained bullet wounds and were transported to a private hospital where doctors pronounced Zafir, 18, dead, the SP said.

The victim, a resident of Defence Housing Authority, was a first-year student at DHA College, said SP Malhi.

The suspect, Khawar Hussain Burney, was presented in court today, where police requested physical remand for 14 days in order to investigate the case.

Police officials told the court that a first-information report (FIR) had been filed, and the weapon and cars involved in the crime had been recovered from the suspect.

The investigation officer (IO) told the court that one absconding suspect has yet to be arrested. Raids are ongoing to round up the last suspect, police told the court.

Burney's lawyer argued that as the murder weapon and vehicles involved in the crime had already been recovered, there was no need for his client to be remanded into police custody.

The lawyer also took issue with photos of his client being circulated on social media.

The state prosecutor described the case as one pertaining to terrorism and asked for terror charges to be added into the FIR.

Subsequently, the court handed the suspect over to police on a two-day physical remand and asked the IO to submit a detailed report on updates in the case in the next hearing.