Updated

U.S. officials say they are prepared to work with Russian security officials to help protect American athletes and the 10,000 American spectators expected to attend the Olympic Games in Sochi, Russia.

Threats of violence at the Games set to begin next month have been on the rise. As host country, Russia has prime responsibility for protecting athletes and spectators.

Senior American officials say U.S. officials view the threats as troubling but not unusual for such a high-profile event. One of the senior officials says all threats are being taken seriously, with the safety and security of all Americans in Sochi a top priority.

The senior U.S. officials spoke on condition of anonymity because they were not authorized to speak by name.