Two bombs struck near the finish line of the Boston Marathon on Monday, turning a celebration into a bloody scene of destruction.

The blasts threw people to the ground, killing two and injuring dozens.

The Boston Globe reported that at least 90 people were being treated at area hospitals.

White House area on lockdown after blasts CNN producer: Heard big boom, saw smoke Blasts near Boston Marathon finish line Eyewitness: People 'very badly hurt'

The terrorist attack, near the marathon's finish line, triggered widespread screaming and chaos, shattered windows and barricades and sent smoke billowing into the air at Copley Square.

They were about 50 to 100 yards apart, officials said.
'It felt like a huge cannon,' a witness told CNN about one of the blasts.

Photos from the scene showed people being carried away on stretchers. One man in a wheelchair had blood all over his face and legs.

The bombs shook buildings, sending people to seek shelter under tables, witnesses said..