A man claiming to have a bomb strapped to his chest seized hostages at the campaign office for Clinton earlier today, police and witnesses have said.

Clinton, who was not at the office in Rochester, New Hampshire, cancelled a speaking date in Virginia, Democratic Party officials said.

New Hampshire's state police sent bomb units to the scene, according to media reports.

"A young woman with a 6-month or 8-month-old infant came rushing into the store just in tears, and she said, 'You need to call 911. A man has just walked into the Clinton office, opened his coat and showed us a bomb strapped to his chest with duct tape'," witness Lettie Tzizik told WMUR TV.

New Hampshire State Police Maj Michael Hambrook told CNN the man had freed some hostages but was holding others. { FULL STORY }