Updated: 8:04 AM A person familiar with the situation tells The Associated Press that an 8-year-old-boy has been killed in the explosions near the finish line of the Boston Marathon.

Updated: 7:13 PM President Barack Obama, responding to the explosions at the Boston Marathon, says the United States does not know "who did this or why" but vowed that whoever is responsible "will feel the full weight of justice."

Updated: 8:32 PM Boston police say no suspect has been taken into custody in connection with the explosions near the finish line of the Boston Marathon.

Posted: 6:06 PM Google is stepping in to help family and friends of Boston Marathon runners find their loved ones after explosions near the finish line.

Updated: 8:35 PM President Barack Obama will issue a statement on the explosions at the Boston Marathon in televised remarks to the nation from the White House at 6:10 PM.

Posted: 5:47 PM Cellphone companies say service is operating in the Boston area, but with heavy traffic following of the explosions at the Boston Marathon.

Updated: 8:36 PM Attorney General Eric Holder has directed the full resources of the Justice Department be deployed to investigate the bombs that exploded at the Boston Marathon.

Posted: 5:30 PM The Red Cross has created a central website to allow people in disaster areas in the United States to register their current status, and for people concerned about their loved ones to access that information.

Updated: 6:52 PM Boston police say there's been a third explosion in the city, following two blasts near the finish line of the Boston Marathon that killed two people and injured many others.

Updated: 8:34 PM The Federal Aviation Administration is warning pilots that it has created a no-fly zone over the site of two explosions at the annual Boston marathon.

Updated: 8:37 PM One runner says he saw at least two dozen people with very serious injuries at the finish line of the Boston Marathon, after the twin explosions there. The runner, a Rhode Island state trooper, says the injuries included missing limbs.

Updated: 8:38 PM British police say they are reviewing security plans for Sunday's London Marathon, the next major international marathon, because of the explosions that hit the race in Boston.

Updated: 8:37 PM Police are stepping up security at hotels and other prominent locations following explosions at the Boston Marathon.

Posted: 4:08 PM A sentencing hearing for a soldier who pleaded guilty to attempted espionage and other charges has begun at Joint Base Elmendorf-Richardson in Alaska.

Updated: 8:33 PM Fifty Kentuckians were among those participating in Monday's Boston Marathon which was was rocked by two explosions. "Nothing surprises me any more after being in Afghanistan," said Varinka Ensminger, who has been a Lexington Police officer since 2005.

Updated: 8:33 PM Two explosions at the finish line of the Boston Marathon have resulted in two deaths and at least 50 injuries.

Posted: 2:50 PM A small boat that washed up in Northern California after the massive 2011 tsunami that hit Japan has been claimed by a city that was devastated in the disaster.

Updated: 2:38 PM The Supreme Court seems worried about the idea of companies getting patents for genes found inside the human body.

Posted: 1:34 PM American Express is promoting company veteran Edward P. Gilligan to president.

Posted: 12:24 PM Gov. Steve Beshear says he won't run against U.S. Senate Republican Leader Mitch McConnell despite encouragement from lots of people do so.

Posted: 10:59 AM The parents of a 6-year-old girl killed in the Newtown school shooting are seeking scientific answers about what could lead a person to commit such violence.

Posted: 10:15 AM U.S. homebuilders are concerned that limited land and rising costs for building materials and labor will slow sales in the short term.

Posted: 10:01 AM Police have cited a 42-year-old Pennsylvania woman for disorderly conduct after she called 911 requesting a divorce and police assistance to make her husband leave.

Posted: 9:48 AM A suburban Cincinnati nursing home is on a federal watch list, following inspections that found problems including sexual abuse of a female patient with dementia.

Posted: 8:56 AM The murder trial of a Philadelphia abortion provider is entering its fifth week but it will be days if not weeks before the defense starts its case.