Hazmat crews responded to reports of possible hazardous materials at a building in Carlsbad Wednesday afternoon.
According to Carlsbad Fire, they received a call around 3:10 p.m. about a possible combination of dangerous chemicals at a building on 3305 Tyler St. The building once housed K & K Laboratories, a vitamin factory that closed down about two years ago, according to authorities.
Carlsbad Fire said a cleaning company had been cleaning out old products in the building when an unknown solid and liquid accidentally combined, causing a violent reaction that sparked heat.
Police said there were around 10 people in the building at the time of the incident. The people inside evacuated the building and called 9-1-1.
No injuries have been reported, but it is still unclear if someone physically came into contact with the potentially harmful chemicals that combined.
The building has been evacuated and Hazmat crews are on the scene testing samples to determine if the chemical reaction is dangerous.
As a precaution, police closed off some nearby streets, but said there’s no threat to public health. Still, residents in the area have been told to stay inside and close windows and doors while Hazmat continues to investigate.