Iran strongly condemned the twin bomb blasts at the Boston Marathon that killed at least three people

Iran strongly condemned the twin bomb blasts at the Boston Marathon that killed at least three people, calling the bombings a “source of sorrow”, Iranian foreign ministry spokesman Ramin Mehmanparast said on Tuesday.
  
"No one should under any circumstances support terrorism and extremism, whether it be in the Middle East or the United States," he said.
  
Two bomb blasts struck one of America's top sporting events Monday, killing at least three and wounding more than 100 as the Boston Marathon descended into chaos.
  
US President Barack Obama went on national television to warn against "jumping to conclusions" but a senior White House official, speaking on condition of anonymity, said such an attack was "clearly an act of terror".