A man in his 40s, arrested on suspicion of aggravated robbery, attempted suicide while in a police holding cell in Incheon. The suspect is currently in critical condition following the attempt. The incident occurred while the individual was detained by police pending further investigation into the robbery charges. Details surrounding the circumstances of the attempt have not yet been released. Authorities are investigating the incident and providing medical care to the suspect. This case raises concerns about the mental health and well-being of individuals in police custody in Incheon.