Secret Service Tweet about suspicious package sent to President:

https://twitter.com/SecretService/status/1047253263379304458?s=19

Text of linked download:

SECRET SERVICE STATEMENT REGARDING RECEIPT OF SUSPICIOUS ENVELOPE WASHINGTON -The Secret Service can confirm receipt of a suspicious envelope addressed to the President on Oct. 1, 2018. The envelope was not received at the White House, nor did it ever enter the White House. As a matter of practice, the Secret Service does not comment regarding matt ers of Protective Intelligence. However, in this instance, we can confirm that we are working jointly with our law enforcement partners to fully investigate this matter. Further, all threats directed towards the President, or any Secret Service protectee , are treated seriously and fully investigated.