Rochester police chief David Dubois said there were initially four adults and one child in the campaign office but that Eisenberg immediately released a mother and young child when the standoff began about 12:15 p.m. (5:15 p.m. British time).
A female campaign volunteer escaped from the building about 2 1/2 hours later and was quickly escorted to safety. A second was released soon afterward.
A man who appeared to be in his 20s was led to safety after the arrest of Eisenberg, who faces kidnapping, reckless conduct and possible federal charges.
CALLS TO CNN
Eisenberg, a Somersworth, New Hampshire, resident who made news in March when he protested a police campaign to stop car theft that he said was unconstitutional, was arrested after unwrapping the tape from his waist, raising his hands in the air and kneeling on the ground.
Eisenberg made multiple calls to CNN through the afternoon and told staffers he had mental problems and could not get help, the network said.
The Rochester offices of Clinton's top rivals for the Democratic presidential nomination -- Senator Barack Obama and former Senator John Edwards -- were evacuated along with nearby businesses. Schools locked their doors.
During the standoff, dozens of heavily armed police in black protective vests and helmets patrolled the area with FBI and Secret Service agents. Authorities restrained crowds behind yellow police tape as news helicopters hovered overhead.
Rochester, a city of 30,117 people, is the site of one of 16 Clinton offices in the state, which is shaping up as a crucial test for Clinton, the Democratic front-runner in the state. Her lead has narrowed in recent months over Obama.
The campaign of former Massachusetts Gov. Mitt Romney, the Republican front-runner in the state, said it locked all of its New Hampshire field offices and ordered staff to be on alert.
