A man with a bomb strapped to his body is holding at least two staffers hostage at the Clinton campaign headquarters in New Hampshire.

State Police said the man released a mother and a child from the office, but is holding others.

Clinton is not there. She is in Virginia. She was scheduled to speak at a Democratic National Committee event this afternoon, but she has cancelled her appearance.

Bill Shaheen, chairman of Clinton’s campaign, said someone walked into the satellite office with what appears to be a bomb strapped to his chest. Two staffers, whom he described as volunteers, were held hostage and others were released.

Workers for Sen. Barack Obama’s campaign office in Rochester also were evacuated, a campaign spokesman said. The office is four doors away from Clinton’s. John Edwards’ staffers and several businesses in the neighborhood also were evacuated.

A nearby school is locked down.

Police have gathered at a nearby church and set up a command post there. SWAT teams and the State Police bomb squad are heading to the scene.

-Chris Jones

**UPDATE #1: The man is demanding to speak with Hillary Clinton

**UPDATE #2: The two hostages were released at about 3 p.m. ABC News is reporting that the hostage-taker was an older male who was well-known locally and has a history of mental illness who told his son today to “watch the news.”