A 15 year old boy dies inside the oven, after he enters into it to escape cold weather. The oven door closes leading to the death of the boy.
https://www.indiatoday.in/india/story/up-gonda-teenager-boy-dies-trap-oven-biscuit-factory-1405407-2018-12-08
Similar incident occurred elsewhere. Here, four persons get trapped inside and cooked to death. From the news report, it is understood that they entered again into furnace after their cleaning work is over, did not inform anybody, did not put caution board, did not remove furnace fuse.
https://www.dailymail.co.uk/news/article-2113800/Metalworkers-cooked-death-inside-giant-Austrian-oven-door-closed-800C-furnace-accidentally-switched-on.html