Hackers broke Twitter accounts of The Associated Press news agency on Tuseday, falsely reporting that US President Barack Obama was hurt in a blast that targeted the White House.

Hackers broke Twitter accounts of The Associated Press news agency on Tuseday, falsely reporting that US President Barack Obama was hurt in a blast that targeted the White House.

The false tweet said there had been two explosions at the White House and President Barack Obama was injured. The attack on AP's Twitter account and the AP Mobile Twitter account was preceded by phishing attempts on AP's corporate network.

Asked about the incident at a press briefing, White House spokesman Jay Carney said the President is fine. "I was just with him," he said.

The AP confirmed that its Twitter account had been suspended following a hack and said it was working to correct the issue. The fake tweet went out shortly after 1 pm.

AP spokesman Paul Colford said the news cooperative is working with Twitter to investigate the issue. The AP has disabled its other Twitter accounts following the attack, Colford added.