A teenage girl has been arrested on suspicion of attempted murder after two teachers and a pupil were stabbed at a Welsh school.Emergency services attended Amman Valley School, also known as Ysgol Dyffryn Aman, in Carmarthenshire, south-west Wales, just after 11.20am on Wednesday.

A teenage girl has been arrested on suspicion of attempted murder after two teachers and a pupil were stabbed at a Welsh school.Emergency services attended Amman Valley School, also known as Ysgol Dyffryn Aman, in Carmarthenshire, south-west Wales, just after 11.20am on Wednesday.