MISSION VIEJO (CBSLA.com) — A 27-year-old Southland man was in custody Tuesday on federal charges of making and possessing explosive devices, the FBI said.

Zachary Turtenwald was arrested in San Francisco after FBI agents searched his Mission Viejo apartment at 24950 Via Florecer Friday. According to the criminal complaint, agents found chemicals and ingredients typically involved in bomb making.

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Turtenwald surrendered to San Francisco police after learning of the search warrant. He was returned to Orange County Sunday.

FBI Spokeswoman Laura Eimiller said Turtenwald is charged with manufacturing explosive materials without a license and possessing unregistered destructive devices. He made an initial appearance in court Monday to face the charges.

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Arraignment is scheduled for Oct. 21.

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