Yellowstone tour van crash: At least seven dead as vehicle becomes fireball

Seven people have died following a dramatic bus crash at a major wildlife reserve in which the vehicle was engulfed in flames.

The collision between a tour van and second vehicle left both in flames as they travelled on a road just outside the Yellowstone National Park in Idaho.

The tour van and a Dodge Ram pickup exploded into flames on Thursday evening, Idaho Police said, with two people dying in the aftermath.

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The accident took place at around 7.15pm on a highway near Henry's Lake State Park, roughly 16 miles to the west of the famous national park.

Among the dead were the driver of the pickup truck, it has been reported, and six of the 14 people inside the tour van at the time.

Idaho State Police are yet to confirm exactly how many people in the van were injured, or release the names of those who died.

The authorities are also yet to provide a cause of the accident, with an investigation into the incident currently ongoing.

Air ambulances and emergency paramedics had rushed to the scene, with dramatic pictures showing the charred wreckage of the vehicles smoking after the crash.