An envelope containing a white "powdery substance" was reportedly sent to former President Barack Obama's Washington, D.C., office.
The powder was found and reported to authorities around 11 a.m. on Feb. 13 at the World Wildlife Fund headquarters, where Obama has been leasing office space since leaving the White House. Authorities in hazmat suits entered the building soon after to investigate the substance, before ultimately learning that it was baby powder.
D.C. Fire and EMS Battalion Chief Edward Smith told Fox 5 D.C. that the envelope was mailed from Hong Kong, China, but did not include a note.
A number of unconnected incidents took place around the same time, with current President Donald Trump's daughter-in-law also being the victim of a similar scare. An envelope with white powder in it was addressed to Donald Trump, Jr. and caused his wife, Vanessa, to be taken to the hospital.
"You are an awful, awful person. I am surprised that your father lets you speak on TV. You the family idiot. Eric looks smart," a letter sent with the powder stated, NBC New York reported. "This is the reason why people hate you. You are getting what you deserve. So shut the f**k up."
Vanessa Trump later tweeted her thanks to the authorities who made sure she was safe and healthy following the scare.
"Thank you so much for all the help today in NYC! I appreciate all the quick response to make sure that I was safe ! Thank you @FDNY @SecretService @NYPDnews @NYPDCT @NewYorkFBI," she tweeted.
"Thankful that Vanessa & my children are safe and unharmed after the incredibly scary situation that occurred this morning. Truly disgusting that certain individuals choose to express their opposing views with such disturbing behavior," Donald Trump, Jr. tweeted.
In a statement, the president's attorney, Michael Cohen, addressed the alarming incident.
"How disturbed must a person be to do what they did to a mother of five young children? This dangerous and reckless act goes beyond political differences," Cohen wrote in the statement.
An envelope with white powder was also sent to the London office British Home Secretary Amber Rudd, who was in the States at the time.
"At approximately 11.36am on Tuesday, 13 February, police were informed of a suspicious package that had been delivered to an office within the Palace of Westminster. Police are at the scene and dealing," a statement from British police read, The Sun reported.
"The letter contained a white powder which is currently being assessed by specialists. The office remains closed at this time, but the rest of the Palace of Westminster is open. Detectives from the Met’s Counter Terrorism Command have been informed and are investigating."
A source told The Sun that staff at Rudd's office was forced to evacuate as a result of the package.
"Police and security were all over the Home Secretary’s staff office, they threw us all out in panic and suddenly coppers were everywhere," the source added.