UPDATE:

LANSING, MI -- Bloody footprints stain Christopher Gregurich's driveway. One of three people severely burned in a

ran up and down the pavement early Tuesday, trying to extinguish the flames engulfing him, Gregurich said.

"He was out in the back, screaming down," Gregurich said. "One of the neighbors across the street got one of the (victims), basically in shock. A couple of them didn't have clothes on because I think they ripped their clothes off because they were on fire."

The house in the 900 block of Clark Street burst in flames about midnight, according to the Lansing Fire Department. Three people were inside the house when it burst into flames. Two of them sustained second-degree burns to about 50 percent of their bodies; the third person about 70 percent.

Gregurich was working at the time, but his wife, Stacy, was at their home two doors south of the house that exploded.

"My wife heard it, saw it," Gregurich said. "She heard glass breaking and people yelling, screaming. She saw a glow and ran outside."

Gregurich said his wife called him about the fire and he immediately rushed home. He arrived to a bustling scene rife with firefighters, emergency crews and thick, billowing smoke.

"It was going pretty good for a long time," he said. "Probably four or five hours."

Gregurich said police told him the explosion occurred while the three occupants were making hash oil, an extremely flammable solvent laced with THC. Lansing Fire Department public information officer Charles Stadt said he could not confirm or deny that.

"Police said there was enough chemicals in that house to blow up half the block," Gregurich said.

The house was a rental. Gregurich said he knew the owner, who moved away last fall and began renting the house out. He said the owner invested a significant amount of money in renovation recently.

"Everything in that house was brand, brand new," he said.

Two of the three severely burned in the fire were tenants, Gregurich said, adding he did not know them well.

"You saw glimpses of them," he said. "You never really saw anybody on the porch or in the neighborhood or anything else."

The three victims are receiving treatments in different burn units across the state, according to the Lansing Fire Department.

As for the neighborhood, ash was drifting about from lawn to lawn as fire crews worked to clean the scene Tuesday morning.

Gregurich's house took some smoke damage, but he said the real valuables remained unharmed.

"I'm just glad when I got home my wife was fine," he said.

The Lansing Fire Department continues to investigate the fire. The house is considered a total loss.

The blast was so powerful it moved the south side of the house off its foundation by two-and-a-half feet.

Follow Brandon Howell on Twitter: @BHowellMLive. Email him at brhowell@mlive.com or call him at 517-908-0711.

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