LOUISVILLE, Ky. (WAVE) – Louisville officials say 12 employees at Givaudan Sense Color in Clifton were hospitalized after an explosion at work. Two of those employees were rescued by Louisville fire crews.

Chief Medical Officer Dr. Jason Smith said the University of Louisville Hospital is treating seven of those individuals. He said two of the victims were in critical condition and the other five were in stable condition.

All seven patients referred to UofL Hospital underwent a decontamination process. Dr Smith said the process can take up to 15 minutes and involves removing clothing and any chemicals before taking them in for further treatment. Since personnel could not be sure exactly what chemicals the injured had been exposed to, they decontaminated for anything and everything that might have been contained in the plant.

Smith said they saw a variety of injuries from the blast, including multiple burn and blast injuries, as well as penetrating and blunt force injuries from the force of the blast and crush injuries from any debris that fell on the victims. Currently, no patient is bleeding significantly.

According to Smith, the hospital hasn’t seen an explosion like this in a while.

Baptist East Hospital is treating the other patients.

The explosion was reported around 3:00 PM on November 12 at 1901 Payne Street. Givaudan Sense Color is known as the former DDW factory.

Metro Louisville emergency services say the initial shelter-in-place order issued for those within a one-mile radius has been lifted. Those within a radius of two streets were evacuated.

In an update, Louisville Mayor Craig Greenberg said the cause of the explosion is unknown. Greenberg said everyone who worked at the facility and those around them were accounted for.

Givaudan team members who were inside said everything was working normally before the explosion.

Air monitoring in the area is clear at this time. Greenberg is asking the public to continue broadcasting with caution and avoid the area. No additional evacuations are planned.

Louisville officials are working to get more details from the company about what kind of chemicals were involved.

Businesses on Frankfort Avenue in Clifton reported damage from this explosion. These are the photos sent to us from Quills Coffee and Osaka Japanese Restaurant.

WAVE SkyTrack cameras captured the explosion from a distance. In the video, you can see a spark ignite before heavy smoke fills the air.