Levies sources said armed men targeted five people with sophisticated weapons in Pedrak area of Kech Turbat district.
The killings claimed the lives of head constable Manzoor Ahmed and Balochistan Constabulary constable Muhammad Azam.
The three-day anti-polio campaign is being carried out in Quetta, Pishin, Qila Abdullah, Zhob and Sherani districts.
Malik Baloch returned home after a week-long visit to London where some Baloch leaders, have been living for years.
At least two persons were killed in a gun-firing incident in separate incidents of violence in Quetta.
Another explosion on a bridge on the National Highway near Mach cut off the road link between Punjab and Balochistan.
The accident took place as two cars collided due to overspeeding at the Bypass Road area.
Informed sources told Dawn that the decision was taken in a meeting held to review security plan of judges of the BHC.
Balochistan Union of Journalists Tuesday staged protest demonstration against killings of newsmen at Quetta Press Club.
The Balochistan home secretary said Iran cannot conduct operation in Pakistan for the recovery of kidnapped soldiers.
A senior official said repair work was not likely to commence before morning due to security risk in Dera Murad Jamali.
Seven people in the car, including two children and a woman, were injured. Later, they succumbed to their wounds.
FC recovered three foreigners kidnapped by a gang of drug traffickers and arrested eight Iranians who were holding them.
Meanwhile, the FC claimed to have killed 10 militants in a clash in troubled Dera Bugti district.
After 2,000 kilometres on the road, a band of families led by Mama Qadeer reached the end of their protest march.
An Afghan government official and two other people were gunned down in separate incidents in Balochistan.
Speakers at seminar said that persecution of minorities was contrary to teachings of Islam and values of tribal society.
Abductors set free a kidnapped polio worker and Levies personnel late Tuesday night, police confirmed.
Iranian border guards fired two rockets into Balochistan's Panjgur district, said a security official.
Under the plan, 300 primary and middle schools would be upgraded with the support of Unicef and Global Partnership.