AUSTIN, Texas (AP) Austin police say they have received more than 150 calls reporting suspicious packages after three package bombs exploded at homes in less than two weeks in the Texas capital.
Austin residents are being told to be vigilant about unexpected or suspicious packages at their door after a series of package bombs killed two people and critically injured a woman. (Austin police photo)
The police department tweeted the figure Tuesday.
Authorities have urged people receiving unexpected packages to call 911 without handling, moving or trying to open them.
A package bomb left on a doorstep in Austin killed a man March 2.
Two similar packages left at separate homes Monday killed a 17-year-old and wounded two others.
Investigators originally suggested that the attacks could constitute a hate crime because the victims were all black or Hispanic, but they now say they are looking at all possible explanations.
The FBI and other federal agencies are also investigating.
The U.S. Postal Service says signs of a suspicious letter or package include no return address, restrictive markings such as “Personal !” or “Do Not X Ray,” misspelled words, bad typing or poor writing, excessive postage, excessive tape, stains, discoloration, crystallization on the wrapper, a strange odor, protruding wires, unevenness or lopsidedness, rigidity and bulk.