The Associated Press reported that an official with United States law enforcement says that Seattle authorities have a man in custody for sending suspicious packages to military bases near Washington D.C..

The law enforcement official said the packages had black powder in them, along with notes that included rambling and nonsensical statements. The man has sent previous notes like these in the past.

Authorities have not given the identity of the man to the public, but the law enforecemnt officials are familiar with him. Around a dozen military locations received these suspicious packages on Monday.

A couple of these notable locations were Joint Base Anacostia-Bolling which is located in the Washington D.C. area. Also, Fort Belvoir in Virginia received one of these mysterious packages.

No injuries were reported at any of the scenes, and the FBI said the packages are undergoing further analysis. The motive of the man is still unclear at this time.