Islamabad, March 9 : Four people were killed and six others injured in a shooting outside a school in Pakistan's northwest Khyber Pakhtunkhwa province on Thursday.

The killed included a policeman and a student who got bullet shots in a crossfire between two groups in Bannu district of the province, police sources told Xinhua.

The injured people including students were shifted to a nearby hospital, where two of them had been in critical condition.

The culprits from both groups fled the scene after the incident and the police launched a search operation to nab them.