The International Olympic Committee has stressed the incident at the Sanki Sliding Center which left a worker hospitalised was not due to a problem with the bobsleigh track.

The man underwent an operation after suffering two broken legs when being struck by a forerunner during Thursday's training session for the two-man bobsleigh.

The incident took place towards the end of the course, with the worker taken by air ambulance to hospital, where he is stable and in a "good condition".

A forerunner is a manned bobsleigh that tests the track before the competitors begin their official training runs, with a warning signal given to clear the track.

At the daily IOC press briefing, Dmitry Chernyshenko, president of the Sochi 2014 organising committee, said: "The track is absolutely safe. Yesterday, right after the incident, we continued with training and then competition.

"The track is in the highest possible standard of safety."

Aleksandra Kosterina, Sochi 2014 head of communications, would not go into the details of the worker's injuries, but she too stressed that the incident was not a safety issue.

"The (worker's) operation went smoothly," said Kosterina. "He is conscious and stable and everything is good right now.

"I don't want to go into details about injuries but he is in good condition.

"We are still looking at what happened there, so it is a little premature to say why he was on the track after the alert.

"But it is not linked to the safety of the track, the alert system was in place."