Video: Dramatic footage shows police helicopter shootout in Rio de Janeiro

Footage of a shootout between police and an alleged drug trafficker in Rio de Janeiro, Brazil has emerged.

In the short video, police can be seen firing from a helicopter at a car, as it speeds through the city.

The car eventually stops and is surrounded by people from the local area but the suspect flees the scene. The accused drug trafficker was found dead a day later in a parked car.

The chase happened last year and authorities have now launched an investigation into whether the officers involved used excessive force.