Washington school officials and the FBI are once again this morning evacuating schools after suspicious letters were found.
Officials are taking precautions this morning, investigating if the letters contain harmful substances, according to the FBI.
So far, no one has been injured but officials say each new discovery consumes hundreds of hours of police manpower.
Of the 29 letters found Thursday and the letters found this morning, no harmful substances have been found.
Each suspicious package has been taken to the FBI’s lab at Quantico for further examination.
Investigators say the letters have been mailed from the Dallas area and are similar to other letters being investigated by the FBI in that city. The letters are also similar to letters received by Washington, D.C. schools in October, reports the FBI.
