NORTH TONAWANDA, NY — Three students at North Tonawanda High were charged last week with making terroristic threats. Police tell us on Feb. 28, the teens were on an afternoon school bus ride, and discussed how they would shoot up the school.

Captain Thomas Krantz says the teens admitted to having the discussion and were very specific about how the attack would happen. Police cannot say whether an actual attack was imminent.

Investigators tell 2 On Your Side, they didn't find any weapons at any of the teens' homes and they didn't find anything concerning on any of their social media pages.

"In this day and age, you do not know when simple talk or a joke or a what if scenario turns into the real thing," Krantz said.

The students — all boys — are 14, 15 and 16 years old. 16-year-old is the only teen charged as an adult. Because of their ages, their names are not being released.

The 14 and 15 year olds were charged on March 2, and their cases will handled by Family Court. The 16-year-old was charged on March 1. He was arraigned and released on his own recognizance. He's due back in court later this month. All three will be required to have a mental health evaluation. Police tell us the teens' parents are cooperating. All three teens have been suspended from school, pending a superintendent hearing.

Police also say they first learned of the matter from a concern parent, who was told about alleged threat by their child, who was on the bus.

"That child did the absolute right thing, soon as they got off that bus and went home told their parent and their parent called us," Krantz said.

In an unrelated matter, a 15-year-old North Tonawanda High student was charged Wednesday with falsely reporting an incident. Police say that teen made an outburst in school that he was going to "kill some people."

Police say they've investigated at least 10 school threats since the Florida school shooting three weeks ago.