OKARA, Dec 21: Four highwaymen on Friday looted a bus and shot dead a security guard on resistance near Renala Khurd By-pass.

Masquerading as passengers, armed men boarded the Dera Ghazi Khan bound bus (LXP-2555) from Lahore. Near Renala Khurd By-pass, the robbers stood up and whipped out their weapons.

Saddar police have registered a case and are investigating.