At least 12 people were taken to hospitals and residents were urged to shelter in place after an explosion at a Louisville, Kentucky, business.

A "hazardous materials incident" was reported Tuesday afternoon at the address of a Givaudan Sense Colour facility, according to the Louisville Metro Emergency Services.

At least 11 people have been taken to hospital following an explosion at a chemical manufacturing plant in Louisville, Kentucky. Residents across the city reported hearing a large boom, with lights flickering and buildings shaking from the impact of the blast on Tuesday afternoon at around 3 p.