CURRIMAO, Ilocos Norte, Jan. 25– Police investigator SPO3 Leonardo Battulayan reported that a certain navy enlisted man was arrested for indiscriminate firing (I. F.) of gun in Brgy. Pias, this town. He said an informer tipped off the PNP station that the allegedly drunken suspect repeatedly fired his gun for unknown reason. When the police operatives arrived at the scene, the suspect locked himself inside his house. After bouts of negotiation, the suspect emerged and yielded his gun. Police said he was on AWOL from his assignment in Tawi-Tawi, Sulu, Mindanao.