India, April 26 -- Nine people were injured when unknown armed assailants opened fire on a police vehicle and an ambulance in Pakistan's northwestern Khyber Pakhtunkhwa (KPK) province on Saturday, local police said.

The gunmen ambushed the police vehicle in the Rashkai area of Khar tehsil, Bajaur district, injuring five police personnel, according to a spokesperson for the local police. 

A rescue ambulance that arrived at the scene to take the injured to the hospital also came under fire from the attackers, further escalating the situation, he said. 

The ambulance driver and three civilians were also injured in the attack. 

Security forces have cordoned off the area and launched a search operation to apprehend those res...