Police probe alleged Obama assassination plot

A number of people have been arrested amid fears of a plot to kill US Democratic presidential candidate Barack Obama.

The alarm was raised after a man was stopped by traffic police in Colorado on Sunday. Officers say they found rifles, walkie talkies, and a bulletproof vest in the vehicle driven by Tharin Gartrell.

Others detained include a man who jumped from a hotel window during a police raid.

It is thought the alleged assassination attempt was planned for Thursday when Obama will address the Democrats convention in Denver.