STORM LAKE, Iowa (AP) – A Storm Lake city official says a high school student is facing charges after he tried to hit another student and said he would come back to school with a gun to end an argument. Public Safety Director Mark Prosser says the 16-year-old was arrested at his home and is charged with multiple felonies, including making terroristic threats and assault.

Officials say the teenager was restrained after attempting to assault the other student on Thursday, but later broke free. He also is suspected of hitting a teacher with a chair. Officials were unsure if the suspect left the school afterward. The high school and a neighboring community college were placed on a brief lockdown as a precautionary measure.