PHOENIX — A boy has been arrested by Scottsdale police after he allegedly made a threat to Coronado High School on Saturday, authorities said.

The boy allegedly wrote a one-sentence threat and sent it via direct message to a social media account belonging to the school located near Miller Road and Virginia Avenue.

Police determined the boy acted alone when making the threat and did not have the physical means to carry out the threat.

The case was investigated by detectives and patrol officers, and the boy will face criminal charges.

There will be an increased officer presence at the school on Monday, police said.

An investigation into the threat remains ongoing.

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