Montgomery County police said detectives have arrested a 46-year-old man suspected of robbing three banks using a fake foil-wrapped bomb.

Authorities said the man, Morris Kenneth Thweatt of Takoma Park, was taken into custody July 25 in connection with a trio of robberies at banks in Silver Spring. Investigators said he used a device that was wrapped in foil to carry out the robberies, according to a Montgomery County Police Department news release.

Capt. Paul Starks, a department spokesman, said DNA collected from a hat left at one crime scene pointed police in Thweatt’s direction.

Police allege that during each robbery, Thweatt would enter a bank and pass a note to a teller that said he had a bomb. He would then show them a thin cardboard piece of paper with a black cord at the top that was about as tall as a pen, Starks said.

Police said Thweatt used the fake bomb to rob two Capital One banks and one Bank of America branch in June and July. A Capital One bank on Tech Road was robbed June 10; a Capital One bank on University Boulevard was robbed July 2. The last robbery occurred July 22 at a Bank of America on Colesville Road, according to the release.

Morris Kenneth Thweatt, 46, was charged by police for three Silver Spring robberies where police said he used a fake bomb. (Montgomery County Police Department)

Thweatt was arrested at his home and charged with three counts of robbery. His bond was set at $500,000 Monday.

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