9 March 2015
Last updated at 22:55
It appears the helicopters may have collided
Two helicopters have crashed in north-west Argentina, killing at least 10 people during the filming of a TV programme, police say.
They crashed near the provincial centre, Villa Castelli, 1,170km (720 miles) from Buenos Aires, Security Secretary Cesar Angulo said.
The authorities believe the helicopters may have collided, he added.
Local media say the passengers were French, taking part in an international endurance and survival competition.
The contest takes place each year in the province and is televised internationally.
Both pilots were also killed, local media report. One helicopter reportedly belonged to the provincial authorities.