A 15-year-old has been charged after allegedly making threats of bomb detonations against his Maryland high school in May, police revealed.

According to the Montgomery County Police Department, the teenager allegedly collaborated with a 12-year-old boy from Pennsylvania to make threatening calls to Bethesda-Chevy Chase High School, resulting in the school being placed under lockdown.

The 15-year-old located the 12-year-old on social media, according to police, and allegedly provided him with an undisclosed amount of money to initiate the threat. Neither child has been identified by authorities.

Police reported that the 15-year-old "maintained real-time communication with the 12-year-old, providing information, updates, and instructions as the threats were being issued."

"The caller demanded a specific sum of money to prevent the detonation of bombs at the school," police further explained in their statement.

A specialized law enforcement unit, equipped with K-9s, was dispatched to the school. A thorough search of the premises revealed no explosive devices. Students were dismissed for the remainder of the day, authorities stated.

The pair allegedly made additional threats targeting Walt Whitman High School and Bethesda Elementary School the following day, police reported.

The 15-year-old has been charged with several serious crimes, including threats of widespread violence, providing false information, and coercion.

He was released to his family, police said.

Due to Maryland state law, criminal charges cannot be brought against the 12-year-old, according to law enforcement officials.

"Although neither individual intended to cause harm, their actions significantly disrupted the school day, leading to a lockdown and causing emotional distress among students, staff, and the community," police stated.