( CNN ) -- At least four people were killed when a tourist trolley derailed Saturday in Rio de Janeiro , Brazil , state media reported . About 30 people were injured in the accident , the state-run Agencia Brasil reported , citing firefighters . The trolley went off the tracks in Rio de Janeiro 's hilltop Santa Teresa neighborhood , Agencia Brasil said . CNN affiliate TV Record showed images of rescuers carrying injured passengers away from the wreckage on stretchers . Investigators are trying to determine what caused the accident , TV Record reported . A French tourist died two months ago after falling out of one of the trolleys , Agencia Brasil said . Rio de Janeiro is scheduled to host the World Cup in 2014 and the Summer Olympics in 2016 .
About 30 people are injured , state-run Agencia Brasil reports . Investigators are trying to determine what caused the accident , TV Record says . - A man is killed in a car crash on Brazil's Atlantic coast.