STERLING HEIGHTS, Mich. -

A teen from Michigan has been charged with terrorism for allegedly making threatening phone calls to schools across the country that have been sites of shootings.

Dylan Alexander Clark, 17, allegedly made a series of harassing phone calls to the new Sandy Hook, Columbine, Virginia Tech and Arapahoe.

Clark, who is being charged as an adult, was arraigned Thursday on one count of false report or threat of terrorism and one count of using a computer to commit a crime. Both are felonies that carry up to 20 years in prison.

Police said a search of phone records showed that the calls were being made from a Sterling Heights residence. 

Police in Monroe, Conn., where the Sandy Hook students are, contacted Sterling Heights police and were able to trace several blocked calls that were initiated from the suspect’s home on Sunderland Drive on Feb. 11 . The caller repeatedly made reference to the shootings and claimed to be a relative of the shooter, and then named all of the children who died in the tragedy, police said. 

During the investigation, police said Arapahoe High School (the site of a December school shooting in Centennial, Colo.) also received a phone call threatening to burn the school down on Feb. 11, which originated from the same Sterling Heights residence.

Clark was arrested on Wednesday. Police said a laptop, Kindle, notebook and cellphone were confiscated from his home.

Police said there was no immediate threat to the schools.

His next court date is March 31.

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Dylan Alexander Clark during his arraignment.