At least two people have been killed after a rollercoaster derailed at a theme park in Mexico.
The rollercoaster carriage is thought to have plummeted to the ground after it came of the tracks at the La Feria de Chapultepec theme park in Mexico City.
According to Sky News, the two people killed were young men aged just 18 and 21. They are thought to have died from head wounds sustained in the crash.
There are reportedly more injured people being treated in hospital following the accident involving the Quimera ride at the park yesterday.
Ambulances, paramedics, and other emergency services were seen at the scene of the incident and six people are thought to be being treated for shock.
The park was closed down quickly after the accident occurred. An investigation has begun into the causes behind it.
An official from the civil protection organisation, Miriam Urzua, told Reuters: This is now in the hands of prosecutors, and prosecutors have already taken the necessary steps for an investigation,"
Rosalba Rodriguez, and eyewitness to the events, said that the ride was proceeding as usual and had completed a few loops before the last carriage detached from the rails and crashed into the ground.
The theme park has said that it 'deeply regrets the terrible accident' and will release full details of what happened and why as soon as the investigation is complete.
Authorities are thought to be treating the incident as a case of negligent homicide.
As well as the two men killed, two women - thought to be aged 27 and 25 years old - were transported to Mocel hospital nearby where they are thought to be in a stable condition.
The amusement park will be closed for between one and two weeks whilst the full investigation runs its course, according to local newspaper El Universal.
One of the vendors at the theme park described seeing a passenger thrown out of the rollercoaster at high speed and others hitting their heads as the rollercoaster careered around whilst dragging the derailed carriage behind it.
Other witnesses say that they saw blood stains on the ground in the aftermath of the accident. One told local media: "Something crashed too loudly, the carts were going up, so when the last cart comes it suffered a breakdown and two people were already injured."
"I didn't see it fall, we saw when it had crashed and the last two people were already injured, full of blood,"
Like many of the other rides at La Feria de Chapultepec, the Quimera ride was installed at several other parks before it came to Mexico City.
Featured Image Credit: Twitter/INVEACDMXTopics: World News, Weird