Jacquelyn Martin / AP
A Secret Service spokesman confirmed to BuzzFeed News that a letter that was mailed to the White House tested positive for possible cyanide.
The letter was received at a White House mail screening facility on Monday. The initial test turned up negative, but results from a chemical test performed on Tuesday showed that the substance could be cyanide, which is a potentially deadly chemical.
It was not immediately clear where the screening facility was located.
Secret Service spokesman Robert Hoback told BuzzFeed News that an investigation is now underway, and that the sample had been sent to another facility for further testing.
- Belgium asked the NSA to help catch Paris attacker Salah Abdeslam after a futile four-month hunt, BuzzFeed News reports.
- Turkey's president said that Saturday's suicide bombing that killed at least 54 people was carried out by a child aged between 12 and 14.
- And athletes gathered for one final celebration in Rio as the Olympic games officially came to a close 🇧🇷🏅
