A Bosnia and Herzegovina army helicopter, with four crew members on board, has crashed into a lake, RTRS television reported.

The helicopter fell at around 11am in Lake Jablanica, 40 kilometers from the capital Sarajevo, during a training flight for joint exercises with the EU peacekeeping mission in Bosnia and Herzegovina.

At the time of the crash, there were four crew members in the helicopter, and one of them was injured and taken to a medical facility.

An investigation is underway into this incident.