A fleet of Israeli Air Force helicopters was grounded Thursday morning after a technical problem was discovered in one of the choppers during a training flight.

The emergency landing took place after staff members noticed a problem with the rotor in one of the Ya'sur helicopters after it took off from the Tel Nof Air Force Base near Rehovot. The helicopter landed safely in an open area near the base.

The problem arose while the helicopter was flying toward the Tel Nof landing strip. The helicopter was not damaged, and no one was injured during the emergency landing.

Technical staff opened an investigation into the incident, and the fleet will remain grounded until the issue is resolved.