SCARBOROUGH — Verbal threats that prompted Scarborough to post police at elementary schools Thursday have been found to have no merit, police said.

Scarborough Police Chief Robert Moulton said Thursday night that the person, who has a Scarborough post office box, made threats about elementary schools during a conversation with an out-of-state bill collection agent.

Moulton said Scarborough police were notified and had a police officer in the town where the individual lives — in Maine but not Scarborough — interview the individual.

“There were some threats made in general but not directly about Scarborough schools,” Moulton explained. “It appears those comments were made out of frustration.”

Police took the threats seriously and stationed officers at each of the town’s three elementary schools Thursday. Principals from the Eight Corners School, Pleasant Hill School and Blue Point School sent a letter to parents and staff Thursday stating, “While this was an indirect and secondhand threat, we take all such matters extremely seriously. At no time have students or school personnel been in danger.”

Moulton said his department is satisfied that there is no threat to Scarborough schools and that the matter is closed.