Quetta: At least 20 workers lost their lives in an attack by a group of gunmen in restive southwestern Pakistan on Saturday. The workers were on job at a dam construction site. Also at least three workers have been wounded in the shooting. 

A large group of gunmen attacked a labor camp near the dam construction site, overpowering eight security guards on the site and shooting dead sleeping laborers before fleeing.
 
The violence targeted the Gobdan area of the Turbat district in southwestern Baluchistan province, a region where nationalist and separatist Baluch groups have fought against the Islamabad-based government for years. 

No group has immediately claimed responsibility for the.