A British tabloid reported today that it had been handed documents about security arrangements for the London Olympics that were left on a train by a police officer.

London police confirmed that one of its officers lost a bag containing documents on Jan. 5 and reported it to his bosses, says a CBS News report, adding that the papers were not "operationally sensitive."

"Obviously the loss of restricted material is a matter for concern, but we are satisfied that this does not compromise our security operation for the Olympics," the report says.

"The Sun newspaper says it received the documents from a passenger who found them on the train, and that it returned them to the police," the report says. "It says the papers contain accounts of meetings where security measures were discussed, and details of contingency plans for the Olympics."

The Sun published an image of some of the documents in its print edition, and described in sweeping terms some of the complaints police had about communications systems.