Gunfire sent people running near a police checkpoint in Barangay Dalena, San Pablo, Isabela after a still unidentified gunman opened fire.
Three barangay watchmen who were stationed in a small hut near the checkpoint were shot and injured.
Closed circuit television (CCTV) footage showed people scrambling as several gunshots rang out near the Philippine National Police (PNP) checkpoint.
Authorities are still trying to identify the suspect and determine the motive behind the attack.
