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FBI Says Explosives Suspect Ryan Chamberlain in Custody

Ryan Kelly Chamberlain II, the subject of a nationwide manhunt after explosive materials were allegedly found in his San Francisco apartment, was taken into custody by the San Francisco Police Department and the FBI, an FBI spokesman said today.

A law enforcement source briefed on the case told ABC News that Chamberlain was taken into custody "right under the Golden Gate Bridge," but he was not certain if he was in a car or on foot at the time.

The capture came after a day of dramatic and cinematic cat-and-mouse with the hunted man.

"We had been close to him all afternoon," the scource said. "We never could quite get to where he was. We would find out he was in a particular location 10 or 15 minutes after he was there. He was working his way through the city."

Chamberlain was being trailed by a sizeable task force, made up of FBI agents and local cops.

He was wanted for allegedly possessing explosive materials, and when FBI spokesman Peter Lee announced the bureau's call for public assistance in the manhunt, he said Chamberlain should be considered armed and dangerous.

He was expected to make his first appearance in federal court sometime Tuesday.

Chamberlain had been wanted since Saturday, when FBI agents, San Francisco police and fire crews, and a hazardous materials team swarmed his apartment in the Russian Hill neighborhood.

There were initial reports that law enforcement sources told reporters a large amount of ricin was found, but Lee said Sunday those reports were false.

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