On Wednesday, the office of Rep. Nancy Pelosi reported that the Speaker Emerita was the latest member of Congress to receive a suspicious letter in the mail.
Capitol Police said they temporarily locked down the headquarters of the Republican National Convention after a suspicious package with two vials of blood was found.
Santa Clara County Fire tells ABC7 News that crews have given the all clear at West Valley College in Saratoga after determining there is no threat to the public regarding an earlier report of a possible suspicious package found on campus.
Federal authorities are investigating suspicious letters sent to election offices in five states.
A series of threatening letters containing a mysterious white powder is raising concerns that Republican lawmakers in Kansas are being targeted.
Since Friday, about 100 letters have been received by Kansas GOP lawmakers and Kansas Attorney General Kris Kobach, who is also a Republican, officials said.