The Mayor of Boston told an interfaith memorial service for the victims of the Boston Marathon bombing that "nothing can defeat the heart of this city".
Tom Menino told the service: "We have never loved the people of the world and our great country more, for their prayers and their wishes."
He added: "This is Boston - a city with courage, compassion, and strength that knows no bounds".
New photos of the suspects identified by officials as Dzhokar A. Tsarnaev, 19 and Tamerlan Tsarnaev, 26 have been released.
The FBI has released pictures and video of two suspects in the Boston Marathon bombing, seeking the public's help.
President Obama attended a memorial service in Boston today, paying tribute to the victims of Monday's terrorist attack.