Pipe Bomb Explodes At Marine Charity Run In New Jersey 

Three people were killed and 260 injured when bombs exploded at the finishing line of the Boston Marathon in 2013.

A pipe bomb has exploded on the route of a road race in the US state of New Jersey, forcing the event to be cancelled but causing no injuries.

The blast occurred at about 09:30 local time (13:30 GMT) on a boardwalk area, which authorities sealed off.

The bomb had been placed in a rubbish bin along the route of the 5km Semper Five run in Seaside Park.

The participants would have been in the area but the race had been delayed because of an unattended bag.

The charity race, in its third year, is in aid of Marines and sailors and this year attracted thousands of runners.

State and federal law enforcement agencies are investigating the explosion and are sweeping the area for more devices. They urged people to stay away.

Ocean County sheriffs later said that 30 homes near the site of the explosion were being evacuated.