CARDIFF - A U.S. Secret Service agent assigned to protect President Obama at the NATO summit in Wales was injured on the job here after a car in the presidential motorcade accidentally rolled over his foot.

After opening a car door, the vehicle moved unexpectedly striking his limb, according to eyewitness Eric Connor, a member of the press pool covering Obama's arrival at an evening banquet for world leaders at the historic Cardiff Castle.

The agent was taken from the scene with ice and a bandage on his foot, Connor said, to University Hospital of Wales.

A Secret Service spokesman said the agent was getting the injury "checked out" but that it was a "minor injury."

Obama was not involved, the official said, and the offending vehicle was not the armored "Beast" which ferries the president from place to place on foreign trips.