A harmful chemical substance'trichlorosilane' was leaked from a semiconductor manufacturer in Gumi Industrial Complex in Gumi, Gyeongsangbuk-do today at about 1:45 am on the 21st.

It was reported that seven employees near the site were taken to the hospital, but this was not a serious injury.

After the accident, Gyeongsangbuk-do carried out emergency control operations and sent emergency disaster texts to residents to close the windows and evacuate to the interior.

Trichlorosilane is a colorless liquid with the smell of hydrogen chloride that causes breathing problems, headaches, and dizziness when inhaled.