An explosion on a fire in a suburban Denver neighborhood has forced people to stop using crystal incenses because of the risk of explosions.
The explosion on Friday afternoon at a home on a street just outside of Aurora left three people dead, including the homeowner, and injured more than 50.
The homeowner was pronounced dead at the scene, police said.
Crystal incense is typically used to burn incense, candles, incense sticks and other incense.
But people who use it to burn candles have said it can be difficult to get it to ignite.
A few hours earlier, a home owner in the Aurora neighborhood had reported a blast and said the homeowner had used crystal incensives to light a fire.
Police have not said what sparked the explosion.
The explosion occurred about 3:30 p.m. local time (8:30 a.m., 9:30 am ET).
Police have said they are still investigating.
The blast caused extensive damage to a home, according to police.
They said there were no immediate reports of injuries.
The Aurora Police Department said it received a call about a home explosion about 10:15 a.ms. local on Friday.
Officers went to the scene and found a home with “significant damage,” including two large blasts.
There were no injuries, police spokeswoman Stephanie Smith said.
The police department said the home was a one-story house with a two-story backyard.
It did not immediately respond to a request for further details.
Police said the fire department was investigating the blast.
They did not release the name of the home, citing the ongoing investigation.
Crystal incense burns for hundreds of years as a way to ward off illness.
But the high prices of incense have pushed people to switch to cheaper alternatives like crystal burners.
The price of one candle is about $2.50 on Amazon, while a pack of four incenses costs about $1,500, according a recent analysis by the National Conference of State Legislatures.
Some experts say incense-burning can be dangerous, even dangerous if it is used correctly.
For example, incenses can emit fumes that can cause respiratory problems.
And a person can inhale a vapor that can be poisonous.
Crystal burners come in various sizes, including large and small, which can be used to light up the house.
People who buy crystal burnters typically use them for about a month or more, depending on the size and quality.
They can be expensive, with some costing more than two-thirds of a typical incense stick, according the NCSL analysis.
The NCSLA analysis said the price of a crystal incongruent can reach $50,000, with more than half of the proceeds going to drug cartels.