QUETTA: A senior police official, SP Mohammad Illyas, and his son were killed when unknown gunmen opened fire on their vehicle here on Tuesday evening.

According to reports, the incident took place in the Nawa Kali area and the DSP?s wife was also injured in the attack. She has been shifted to a hospital for treatment.

Last week, a senior police officer was among three officials martyred in a suicide attack on Quetta's airport road.

Around eight others, including police officials, were said to be injured in the attack on the vehicle of the senior police officer. 

DIG Hamid Shakeel, who was heading the motor transport and telecommunications department, and two other police officials were martyred when the DIG's convoy was targetted in a bomb attack. 

Police frequent target in Quetta

Police are often targetted by terrorist attacks in Balochistan. 

In an earlier attack, eight policemen were martyred after unidentified attackers rammed an explosives-laden vehicle into their truck.

Over 20 others were wounded in the bombing, according to hospital authorities.

In August this year, a massive suicide explosion, targeting Pakistan Army personnel in Quetta, left 15 people dead ? including seven civilians ? and injured at least 20 people.

The blast, which reportedly took place in a vehicle, occurred at the Pishin bus stop, causing cars in the surroundings to catch fire soon after.

In June this year, fourteen people, including seven policemen, were killed and 21 injured in a suicide car bombing near the office of the inspector general of police Balochistan on Gulistan Road.

This is a developing story and will be updated as details are made available.