11.11pm BST

We're going to wrap up our live blog coverage of developments in Boston. Here's a summary of where things stand:

• The FBI released photos and videos of two suspects in the marathon bombings, to be found in posts just prior to this summary. The bureau asked for the public's help in identifying and locating the two men pictured, designated as "suspect 1" in a dark cap and "suspect 2" in a white cap. The bureau encouraged anyone with possible information about the suspects to call 1-800-CALL-FBI, 800-225-5334, or to visit the web site bostonmarathontips.fbi.gov. No detail is too small, DesLauriers said.

• The significant development in the case was announced just 74 hours after the attack. DesLauriers said the FBI had initially fingered one person of interest and then, through a diligent process of cross-checking, picked out a second man. He said the FBI is working with partner agencies around the world in the case. Video released by the bureau shows the two men walking one behind the other on a sidewalk. DesLauriers said only the images provided by the FBI should be used in attempts to identify the suspects.

• DesLauriers said the public does not face any current threat, but he also warned that the two men should be considered "armed and dangerous" and that no one should approach them or attempt to apprehend them.

• The seeming breakthrough came on a day when the president and first lady attended an interfaith service at Boston's Cathedral of the Holy Cross, where the president delivered a rousing speech thanking the city for its example of courage and expressing his faith in its comeback. Addressing the culprits, Obama said, "We will find you. We will hold you accountable. But more than that our fidelity to our own way of life, to a free and open society, will only be stronger."

• The president visited bombing victims at Massachusetts General Hospital, where 11 patients were still admitted, 5 were in serious condition, and 6 were in fair condition. The Boston Globe has updated its list of victims of the marathon bombings. Thirty-eight victims are currently listed, with name, age, hometown, nature of injury and source of information. Additional victims still being treated at hospital are not yet listed.

• The New York Post, one of the nation's largest publications by circulation if not reputation, refused to make a retraction or apologize for covering its front page Thursday with a picture of two teenagers the paper called "BAG MEN." The teens in the picture were indeed carrying bags. However they are not and never were suspects in the Boston case.