At least five security personnel were injured when a blast went off in Pakistan's southwest Quetta city, Pakistan on Monday evening, local Urdu TV channels reported.
According to the reports, the explosion occurred in the Buleli area of Quetta, the provincial capital of the country's southwestern Baluchistan province.
The attack occurred when a security vehicle was passing by the blast site, the reports added.
Nature of the explosion has not been officially confirmed yet, but some reports said that the attack was carried out by a suicide bomber.
Security forces and rescue teams rushed to the site and shifted the injured to the Combined Military Hospital in the city.