Obama has been in touch with federal law enforcement and Massachusetts officials in the aftermath of the explosions.
boston-marathon-explosion
Cellphone companies say service still functioning in Boston
Officials with Verizon and Sprint Nextel deny an earlier report that service had been shut down to prevent any remote detonations.
Boston police treating 3rd explosion as related to Marathon blasts
The third blast occurred an hour later at the JFK Library. Police urge people to stay indoors, not congregate in large groups.
FAA orders no-fly zone over Boston explosion site
A no-fly zone with a 3.5-mile radius has been declared over the blast site at 811 Boylston Street.
Celebratory scene at marathon finish quickly turns tragic
The sunny and celebratory scene at the finish line of the 117th Boston Marathon quickly turned tragic after two blasts killed two and injured dozens more.
Obama contacts Boston officials, pledges federal support
After the Boston blasts, the Secret Service shuts down Pennsylvania Avenue outside the White House.
Central Mainers grateful for safety after Boston Marathon explosions
Central Maine residents near the scene of Monday’s Boston Marathon explosions, and their family members, say they’re safe and grateful for that safety.
Joan Benoit Samuelson and family safe, locked down in Boston hotel
Samuelson was also in lockdown at the Fairmont Copley Plaza Hotel, seated on a lobby couch between son Anders and daughter Abby, with husband Scott standing nearby.
3 killed, more than 144 injured in blasts near Boston Marathon finish line
Witnesses report a grim scene with many people suffering dire injuries, including severed limbs.
Maine runners, spectators recount scenes of horror
‘It was absolutely like a war scene,’ says the organizer of Run for the Fallen in Maine, who was at the finish line.