A pair of online threats sparked a police presence at two Ontario-area schools on Wednesday morning.

The Ontario Police Department confirmed in a tweet Tuesday night that it was investigating separate online threats against Oaks Middle School and Chaffey High School.

The nature of the threats was not disclosed, but officers would be dispatched to both schools on Wednesday morning to ensure the safety of students and staff, the tweet said.

Police revealed on Wednesday that they had identified and contacted a minor responsible for the threat related to Chaffey High School.

Investigators said the young suspect had no connection to the school and the threat was unfounded.

Police did not give details of a suspect in the Oaks Middle School threat, but said it was deemed unfounded.

“We take these threats seriously and take legal action where appropriate as we work with school officials to ensure optimum safety on all school campuses,” the police department said.

The threats came the same day a student opened fire on a Michigan high school, killing four people and injuring seven others.