Watch out for severe burns from rocks from the beach

California firefighters say a 43-year-old woman has suffered severe burns caused by stones in pants pockets picked up from Southern California beaches during a family vacation.

Phosphorus does not exist in a single form in nature

Earlier, the woman's child picked up small, smooth, green and orange stones on the beach while playing. The victim then puts them in his pants pocket.

While cooking, the stones do not know how to suddenly start to burn, causing the right knee and thigh of the woman to suffer burns of degree 3.

Although the victim and husband tried to extinguish the fire but failed. His husband's hand even suffered a second-degree burn while the fire continued to spread, causing the wooden house to burn and smoke.

Local authorities do not provide any clues about the cause of the fire. However, it is more likely that this is a natural phosphorus . It may take several weeks to find out the cause, investigators said.