A 67-year-old cancer patient was arrested Wednesday in connection with a fire that ripped through a hospital in Taiwan killing at least 12 people and injuring 60 others.

Lin Chi-hsiung, who was found hiding in a storage facility at the hospital, confessed to starting the fire a day earlier because he was upset over his illness, according to Tseng Chao-kai, head prosecutor for the Tainan District Prosecutor's Office.

Lin is a colon cancer patient who has been hospitalized in the facility since late 2010, Taiwan's Central News Agency (CNA) reported.