The death toll from a volcano in Guatemala has risen to 99 - and officials fear it may climb higher. Sunday's eruption was Fuego's biggest in four decades. And rescuers are worried it could erupt again. Its initial explosion buried entire villages and experts warn heavy rains may now cause large avalanches of volcanic mud. Patrick Oppmann takes us to one of the areas hardest hit by the eruption.

PATRICK OPPMANN NEAR FUEGO VOLCANO, GUATEMALA Guatemalan police have let us in for a brief time into one of the hardest hit areas. And let me just show you some incredible scenes that we are seeing here. It really just takes your breath away. The idea that this volcano behind there, that is the Fuego volcano, when it erupted that, as far away as we are standing, that it sent such a powerful river of ash and lava and superheated mud that picked up cars and it flung them.

There are cars far down the road that we saw their wheels had melted, that even as people were trying to flee and take all their belongings with them, that they could not drive because the wheels had completely melted into the ground. Those cars are then caught on fire. Homes are burned on both sides of what used to be a street here. Now it is just a pile of ash, and we've actually been cautioned to be careful where we're walking because some of this ash is still very hot. I was talking to one rescue worker and he said that his boots actually began to melt yesterday when he veered off a little bit.

So, while rescue workers are back here they're keeping a very close eye on that volcano. It is still putting out smoke this morning. It's still a very dangerous situation they asked us to park our cars facing downhill, in case we have to evacuate. So, while they are here, while they are still trying to find survivors, while they're still recovering the bodies of victims, they're also keeping an eye on this volcano which could blow again any minute.