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.
A high school in the US city of Houston, Texas, was evacuated Tuesday due to a bomb threat, local media reported.
US Secretary of Defense Chuck Hagel said Tuesday that he will visit Israel in a few days in the first trip to the Middle East since taking office in February.
Several Chinese runners were not far from the finish line of the Boston Marathon on Monday when two deadly blasts turned excitement and cheers into confusion.
The London Marathon will go ahead on Sunday as planned despite the two huge explosions at Monday's Boston marathon.
Balls of newspaper flew around in the wind on Boston's Boylston Street on Tuesday amid angry mourning for the three dead and more than 170 injured from the twin bomb attack on the city's famed marathon.
Chinese officials have called on the United States to reduce barriers to Chinese investment and turn to talks and negotiations to tackle trade disputes between the two sides.
Massachusetts Governor Deval Patrick said on Tuesday "two and only two" explosive devices were found after Monday's bombings at Boston Marathon which killed three and injured at least 140.
Xi Jinping sent condolences to Barack Obama over the bombings at the Boston Marathon that killed at least three people and injured more than 140.
A female overseas student from China was injured in the Boston Marathon explosions, the Chinese consulate general in New York confirmed Tuesday.
US President Barack Obama hosts the 2012 BCS National Champion University of Alabama Crimson Tide football team on the South Lawn of the White House in Washington, April 15, 2013.
Obama reaffirmed his administration's commitment on Monday to work together with China.
A US military helicopter crashed near a shooting range in Chelwon, northeastern region of Seoul, South Korea.