A Chevy Chase teenager has been indicted on two counts of making and possessing pipe bombs, Montgomery County prosecutors said.

Kyle G. Druckemiller, 19 was being held Thursday on a $500,000 bond.

According to charging documents, the bombs, about 6 inches and 8 inches long, were found by the father of Druckemiller's girlfriend at her home in the 12000 block of Milestone Manor Lane on April 12.

The charges carry a penalty of up to 25 years in prison.

"In light of the events in Boston we must be ever vigilant to protect our residents," said Montgomery County State's Attorney spokesman Ramon Korionoff.

The father, who said he found a gun in Druckemiller's coat several weeks earlier, told authorities that he found the pipe bombs in Druckemiller's duffel bag, according to charging documents.

During questioning, Druckemiller told investigator he got the idea of building pipe bombs on YouTube.com, and traveled to South Carolina to buy the powder from fireworks to fill the pipes.