'Mock drill' at telecom firm in Islamabad leaves one dead.

ISLAMABAD -- One person was gunned down during a mock exercise, held to simulate a terrorist attack, at the premises of a foreign telecom company, police said on Monday.

The exercise was conducted by the company at its building in Sector G-9/4 on Sunday, police said, adding that the drill was conducted to test the preparation and abilities of the security guards in case of a terrorist attack.

However, police said, the authorities were not informed about the drill by the company.

During the drill, a security guard opened fire with his '222 gun', fatally wounding an office boy, identified as Mudassir. The 33-year-old was shifted to a hospital, where he was subsequently pronounced dead.

Police said that a case was registered at the Karachi Company police station against the security guard under Section 302 of the Pakistan Penal Code.

When asked whether the multinational company had informed police before the mock drill, Margalla Circle Sub-Divisional Police Officer DSP Malik Bashir said he was not aware of any such request. He said prior intimation was necessary ahead of such mock exercises.

Karachi Company police station SHO Sub-inspector Aamir Abbas said that the security guard, who was a retired commando, responsible for the killing was arrested by the police.

The suspect was taken into custody for...