Unidentified gunmen shot dead three people including two brothers and injured another three in Sheikhupura on Sunday, reported 24NewsHD TV channel.
The attackers sprayed the office of Naveed alias Bagga Dogar with bullets spreading panic in the area.
Resultantly, three people were killed and three more injured who were rushed to DHQ Hospital for treatment.
Punjab inspector general of police Dr Usman Anwar took notice of the killing and sought a report from the regional police officer Sheikhupura.
The police have registered a case and launched investigation into the incident.
Reporter Tariq Malik