Ammon News - A teacher has admitted stabbing a seven-year-old girl to death at a school in South Korea, officials say.

The female teacher, reported to be in her 40s, has been treated for self-inflicted wounds in hospital following the attack in the city of Daejeon on Monday.

She has not yet been arrested as police investigate the attack.

The girl was a student at the school where the teacher worked but police said they have not yet established a personal relationship between the pair.

The girl was discovered by her grandmother, an official at the Daejeon Metropolitan Office of Education said during a media briefing on Tuesday.

She was found with stab wounds in the neck and face, a local fire department official told Reuters on Monday, and later died in hospital.

Police said the girl was in cardiac arrest when she was found. Sky News