TOKYO: A mother in Japan is under investigation for murder after her four children, including a girl as young as three, were found dead at home, Japanese media reports and police said on Monday. Local media reported the victims were killed by their mother before she tried to take her own life. A 10-year-old boy, two six-year-old girls, and a three-year-old girl were found dead early on Monday, according to police in the southern Japanese prefecture of Fukuoka. “Their father found them dead and reported it to police,” a police spokesman told Agence France-Presse, without providing further details. Police are questioning the children’s 41-year-old mother as a suspect in a possible murder-suicide attempt, according to Jiji Press and public broadcaster NHK. The mother confessed to police she had killed the children, according to TV Asahi.