UPDATE: A 19-year-old man has been arrested for carrying a gun on the campus of Park Vista elementary school in Opelousas.

Police say Travyone Adams has been charged with carrying a firearm or dangerous weapon by a student or non-student on school property at school-sponsored functions, or in a firearm-free zone. 

Police say Adams is being held at the St Landry Parish Jail.

No other details were released. 

ORIGINAL: Police found a gun Monday morning at Park Vista Elementary in Opelousas.

Authorities say the search for the firearm started after officers arrested a person Sunday night for trespassing at the school.  While searching the suspect, they discovered ammunition on suspect.  That led to the search of the school. Police credit their K-9 Officer Beau for finding the firearm.  

The St. Landry Parish School Superintendent was notified about the situation.  

Details on the suspect and charges will be determined today.