Boston marathon blast may be terror attack | Adelaide Now -g-icon-error cloudy-day nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right 0A0871E9-1636-49F4-9041-2E36
The two explosions, 13 seconds apart, threw the victims into the air at the end of the famous game, tearing some limbs. An eight-year-
It is reported that an old boy was among the dead.
Amid fears that the attacks of September 11, 2001 will happen again, major American cities have stepped up security measures.
S. President Barack Obama said the people who placed the bomb would \"feel the full weight of justice \".
Obama warned on state television not to \"jump to conclusions\", but a senior White House official said such an attack was \"clearly a terrorist act \".
Special Agent Rick DesLaurier, director of the Boston bureau of the FBI, told reporters: \"This is a criminal investigation and a potential terrorist investigation.
\"More than 100 people were injured,\" said Massachusetts Governor Deval Patrick, without giving an exact number.
The Boston Globe said more than 140 people were injured and one of the people killed at the scene was eight. year-old boy.
The surgeon worked late into the night for the wounded in two powerful explosions, which were about 100 away.
US media quoted police and doctors as saying the bomb was loaded with ball bearings, causing terrible damage.
At the scene, some people were torn off their arms and legs.
Several of the victims were \"amputated by trauma\" in a race medical tent or hospital, said Alasdair Conn, head of emergency medicine at the Massachusetts General Hospital.
Five other hospitals were used by the victims.
More than 27,000 runners in 42-
The KM race is one of the most prestigious marathons in the world.
Thousands of people crowded around the finish line.
Many runners had finished the game when the bomb exploded.
Smoke filled the crowd on boilston Street in Boston, and the shop windows nearby were blown out.
As forensic experts enter, the streets around the scene of the bomb blast have been closed.
Video on American television shows an explosion behind a row of flags. One 78-year-
The old runners were blown to the ground, and many bloody spectators were pushed to obstacles on the street by the power of the explosion.
Bill Iffrig, the runner who fell, said: \"It must have been the shock wave that hit me.
My legs are like noodles.
\"But he stood up and walked away again and told his story to many American media.
But other witnesses near the bomb told us how the bodies were stacked together.
\"We saw people\'s legs blown up,\" Mark Habian, owner of the Charles Mark Hotel, told AFP in the basement of a restaurant where he sought asylum.
\"A man next to me had his leg blown up at his knee --
He\'s still alive.
\"The sound is very loud.
\"You can feel the ground shaking,\" added Dan Lamparello, another witness . \".
NBC News quoted officials as saying police found \"multiple explosive devices\" in Boston, adding to the possibility of cooperation between the two sides
The Boston authorities urged people not to gather in the crowd and the area where the attack took place was blocked.
Police warned that Tuesday will strengthen the city\'s safety by conducting random checks on backpacks and luggage on buses and commuter trains.
Many streets will continue to be closed.
Increased security in New York and Washington
Two locations of 9/11 attacks
So are Los Angeles and San Francisco.
Police in New York have stepped up security for hotels and other city landmarks.
The explosion in Boston shook the U. S. market, with the Dow and S & P 500 down at the close.
The flag on the white dome of the U. S. Capitol in Washington was lowered by half.
A mast in honor of the victims of the explosion.
Authorities did not disclose the motive for the explosion or who might have carried it out, and police said they did not detain the suspects.
Officials in Washington say no one has claimed responsibility. WBZ-
Television reported late Monday that law enforcement officers were searching an apartment in the Boston suburb of Rivell.
Police in Massachusetts confirmed that a search warrant was received in Rivell on Monday night in connection with the investigation of the bombing, but no further details were provided.
Earlier Tuesday, some investigators left the Rivell building with brown paper bags, plastic garbage bags and luggage bags.
At the end of the course, as many as two unexploded bombs were also found, which appears to be part of a well
According to a senior U. S. intelligence official, they were safely disarm.
The Federal Aviation Administration created
The flight area at the scene of the explosion and briefly ordered flights to Boston Logan International Airport, which were held at airports across the United States.