Transcript for Fighting Fires in California
We do begin with that call for help from california, the water running so low there, it's now officially the worst drought in 100 years, the governor of california declaring a state of emergency, even as californians are beating back the raging wildfire, allegedly started by THREE CAMPERS IN THEIR 20s Throwing paper on their fire abc's dad wright starts off from the state fighting against mother nature tonight. Reporter: Today, fire crews are still attacking the hot spots, making progress, but another flare-up could happen at any time. It looked like a volcano. Reporter: This man's home was spared, but his shed and neighbor's house are gone. My wife and two girls are safe. Reporter: Federal prosecutors have taken over the case. Cause, authorities say their campfire was set on u.S. Government land. They were supposedly burning paper to keep warm. They weren't trying to do this purposely. They're not arsonists. Today, I'm declaring a drought emergency in the state of california. Reporter: Today, governor jerry brown urged californians to cut water usage by 20%. The extreme dry conditions, now covering two-thirds of the state, have a direct connection to the extended fire season. Not only are all of these cannons full of dry brush, but the reservoirs empty, normally this one would be right up to the rim, but as you can see water is low. Communities are limiting how often people can water their lawns. Many restaurants serving water only if a customer requests it. For now, these conservation measures are voluntary. But mandatory restrictions may follow. California is now in the midst of its worst drought since the gold rush and diane, these are the results. Tonight, catholic bishops across california are asking people of all faiths to come together to pray for rain.
This transcript has been automatically generated and may not be 100% accurate.