At least four persons, including three policemen, were killed and another was injured on Friday evening when unidentified gunmen opened fire at a police vehicle in Pakistan's southern port city of Karachi, police said.

Raja Umar Khattab, a senior police official of the counter-terrorism department, said the incident took place when a group of six gunmen riding on three motorcycles sprayed bullets at a police vehicle in Korangi area of the city.

A police officer, two constables, and a 12-year-old passerby were killed on the spot, while another passerby was wounded.

Police, security forces and rescue teams rushed to the site and shifted the bodies and injured to the Jinnah Hospital.

The police mobile was on its routine surveillance mission when it came under attack, the officer said.

Seemi Jamali, a spokesperson for the hospital, said that all four victims received multiple bullet wounds, especially in their head and chest.

Source: Khaleej Times