A man accused of threatening House Speaker Nancy Pelosi wept Thursday as he talked to his attorney before a federal court hearing.
Gregory L. Giusti, 48, was arrested Wednesday in San Francisco, California, where Pelosi's home district is located, according to FBI spokesman Joseph Schadler.
No further details were immediately available about the case. The FBI said more would be revealed at the court hearing.
Pelosi is the top Democrat in the U.S. House and was a leading figure in efforts to win congressional approval of sweeping health care legislation.
A statement from Pelosi's office said the arrest occurred "after an investigation into threats against" the speaker. It thanked law enforcement officials and said Pelosi would have no further comment at this time.
Threats against U.S. senators and representatives increased as Congress completed work last month on the health care bill, which was unanimously opposed by Republicans. In addition, conservative activists around the country protested the bill. Most of the reported threats were against Democrats, though there were some against Republicans.
On Tuesday, the Justice Department announced the arrest of a 64-year-old Washington state resident for allegedly issuing death threats against Democratic Sen. Patty Murray of Washington state, who supported the health care bill.
–CNN's Dan Simon contributed to this report.