A private security guard committed suicide after killing colleague here on Monday.
Police said that security guard of a private courier company located at Quaid-e-Azam Industrial Area Road of Lahore identified as Shakil Qasim gunned down his colleague Nijjat Khan over personal grudge and later committed suicide with the same weapon.
The bodies of both security guards were shifted to hospital for medico-legal formalities.
The police after registering a case into the incident have started an investigation.