UC Santa Barbara students attend a candlelight vigil following Friday's series of drive-by shootings that left 7 people dead in the Isla Vista section of Santa Barbara May 24, 2014.
Two explosions struck the Boston Marathon Monday, turning a festive game on Patriots' Day, a state holiday in Massachusetts, into a horrific tragedy.
The Chinese consulate general in New York confirmed on Monday that there have been no reports of overseas Chinese being killed or injured in the Boston Marathon explosions.
US President Barack Obama will meet his Republic of Korea (ROK) counterpart Park Geun-hye on May 7 to discuss bilateral ties and security issues.
UN Secretary-General Ban Ki-moon on Monday condemned the bombing at the Boston Marathon, calling it "senseless violence".
Hundreds of protesters clashed with police in the Venezuelan capital after opposition presidential candidate Henrique Capriles called for demonstrations to demand a recount of votes.
Here is a list of some of the worst bombings in the US dating to the 1800s, including some famous attempts that failed:
The National Hockey League has postponed Monday's game between the Boston Bruins and Ottawa Senators earlier in the day, while the NBA has called off a Boston Celtics game. 3 dead, 141 injured in US marathon bomb Boston blasts prompt review of London Marathon Factbox - Key facts about the Boston Marathon
Two explosions rocked the Boston Marathon as runners crossed the finish line on Monday, killing at least two people and injuring 23 on a day when tens of thousands of people packed the streets to watch one of the world's best known marathons.
US Secretary of State John Kerry stopped in Chicago on Monday on his way home from Asia to visit the family of a young US diplomat who was killed in Afghanistan earlier this month.
Inmates in Chicago perform with orchestra as part of music outreach program.
The White House does not yet know who planned and carried out explosions at the Boston marathon but is handling the incident as "an act of terror".
Boston Police Commissioner Ed Davis said on Monday that officials did not know of any specific threats before three devices exploded in Boston on Monday that killed at least two people.