COVINGTON, La. (AP) — Louisiana authorities say two young teens have been arrested on terrorizing charges after calling themselves school shooters.

St. Tammany Parish Sheriff Randy Smith says in a news release Friday that investigators did not consider the threats credible, but the 13-year-old girl and 14-year-old boy were arrested Thursday in separate incidents.

His office arrested two boys and a girl last week on the same charge.

Smith says the 13-year-old was arrested after other Boyet Junior High School students saw a photo she'd posted on SnapChat calling herself a school shooter. He says...