Boston marathon bombing

Key Points

  • The FBI launched a "potential terrorist inquiry" after two bombs at the Boston Marathon
  • The blasts left three people dead - including an eight-year-old boy - and more than 150 injured
  • At least 17 people were critically wounded, officials say, and the injuries include several amputations
  • President Barack Obama said the attack was "an act of terror" but added authorities do not yet know who carried it out
  • All times EST (GMT -4)

Report

Reporters: Taylor Brown, Victoria Park and Caroline McClatchey