Federal authorities are investigating a possible link between two explosions in Sacramento and Calaveras counties and an explosive device found in Yolo County. A spokeswoman for the Bureau of Alcohol, Tobacco, Firearms and Explosives says itÂ´s too soon to tell whether the three incidents are connected.
No one was injured in the blast in San Andreas at the Calaveras County Government Center on Monday. Investigators say witnesses saw a possible suspect leaving the scene Monday night.
The man is described as 5Â´8″, 160 pounds, wearing a white T-shirt and dark pants. He may be driving a newer model, shiny forest green pickup truck.