6:55 AM ET: The AP is reporting that the suspects are from Chechnya, and have lived in the US for at least one year. The surviving Boston bomb suspect has been identified as Dzhokhar Tsarnaev, 19, of Cambridge, Ma. NBC News is reporting that both suspects are brothers. Sources say that the men may have military experience, according to law enforcement officials.
6:30 AM ET: CNN is reporting that
2:45 p.m. (EST): The Boston Police Department has announced that "there has not been an arrest in the Marathon attack." Investigations are ongoing.
2:35 p.m.: CNN is retracting their previous report that an arrest has been made in the Boston Marathon bombings. Other sources are reporting that officials are close to identifying a suspect after reviewing area surveillance video, but no arr