[Updated at 5:48 p.m. ET]
Fifteen patients wounded in this week's marathon bombings remained hospitalized Friday at Boston Medical Center, the hospital said. One of those patients is in critical condition, 10 are in serious condition, and four are in fair condition. The Boston hospital -- one of several in the area treating the wounded -- received 23 patients tied to Monday's blasts overall.
[Updated 5:32 p.m. ET]
Eleven patients wounded in this week's Boston Marathon bombings remain at Boston's Brigham and Women's Hospital -- down from the more than 30 patients total the hospital has treated, and not including those treated at its affiliate Faulkner Hospital -- the hospital said Friday. One of those patients is in critical condition. Several other Boston-area hospitals are still treating injured patients as well.
[Updated 5:12 p.m. ET]
Anzor Tsarnaev -- father of Boston bombings suspects Dzhokar Tsarnaev and Tamerlan Tsarnaev -- who earlier told Russian national TV network Zvezda that he believed his sons were "framed" tells CNN from Dagestan that he was questioned Friday by Russian security services and then released.
[Updated 4:13 p.m. ET]
Fifteen police officers were treated at St. Elizabeth's Medical Center in Brighton, Massachusetts, for minor injuries sustained in a gunfight overnight in nearby Watertown involving the suspects in the Boston Marathon bombings, hospital spokeswoman Jennifer Kovalich told CNN.
[Updated 4:10 p.m. ET]
Authorities recovered a pressure-cooker bomb during their pursuit of suspects in the Boston Marathon bombing suspects that included a firefight in Watertown, Massachusetts, a source briefed on the ongoing investigation told CNN.
[Updated 3:45 p.m. ET]
Tamerlan Tsarnaev -- the 26-year-old man who, with his brother, is suspected in this week's deadly Boston Marathon bombings, flew to Russia in January 2012 and returned to the United States about six months later, said a U.S. official who declined to be named because of the sensitivity of the issue. Tamerlan Tsarnaev was killing overnight following in a shootout with police; his brother remains at large.
[Updated 3:42 p.m. ET]
Investigators probing the Boston Marathon bombings "are recovering a significant amount of homemade explosives" in Watertown, Massachusetts, where authorities engaged in a gunfight with the two suspected bombers, Massachusetts State Police spokesman David Procopio said Friday.
[Updated 3:30 p.m. ET]
Initial indications are the two suspected Boston Marathon bombers likely do not have direct links to a major al Qaeda group or affiliate, according to a U.S. official familiar with the latest intelligence information.
[Updated 3:20 p.m. ET]
The Boston Bruins and a Big Apple Circus performance -- both scheduled to take place Friday night in Boston -- have been postponed due to the ongoing manhunt for a suspect in this week's Boston Marathon bombings, Boston police tweeted.
[Updated 3:13 p.m ET]
The Boston Red Sox have postponed their game scheduled for Friday night at Fenway Park "to support efforts of law enforcement officers," the team announced on its Twitter account.
[Updated 2:04 p.m. ET]
Connecticut State Police have issued an alert for another vehicle, saying a suspect in the Boston Marathon attack now could be in a 1999 green Honda Civic with Massachusetts license plate number 116 GC7. The CSP cited Boston authorities.
Connecticut police issued a similar alert earlier today for a different vehicle; that vehicle eventually was found unoccupied Friday in the Boston area, Boston police said.
[Updated 1:51 p.m. ET]
More details on the Tsarnaev brothers: