WASHINGTON - When the Associated Press' Twitter account got hacked on Tuesday, one tweet sent the stock market down.
The message said "Breaking: Two Explosions in the White House and Barack Obama is injured."
The Associated Press quickly used a different account to attempt to tell the world they had been hacked.
"The @AP Twitter account has been suspended after it was hacked. The tweet about an attack on the White House was false," tweeted AP Entertainment.
The Dow Jones industrial average fell more than 125 points, then quickly recovered.
The Washington Post reported that other markets also reacted to the fake posting.
The newspaper said the price of crude oil fell, then rose back. The yield on the benchmark U.S. government bond, the 10-year Treasury note, briefly dropped as traders shifted money into low-risk investments.
Within minutes, the President stepped outside the White House for an event. He appeared to be fine.
The fake tweet was retweeted about 5,000 times before it was blocked.