The FBI is trying to determine how a hacker or hackers were able to send out a bogus tweet that President Obama was injured in a White House bombing using the Associated Press’ Twitter feed, Reuters reports.
The tweet caused markets to nosedive briefly and sent some people into panic.
The AP Twitter feed has nearly 2 million followers.
The Tweet on Monday read: “Breaking: Two Explosions in the White House and Obama is injured.”
The U.S. Securities and Exchange Commission also is investigating, according to Reuters.