A teacher has been arrested on suspicion of trying to murder a 14-year-old boy at a school in Nottinghamshire.
Pupil Jack Waterhouse suffered a serious head injury in the incident at All Saints' Roman Catholic School, in Mansfield, on Wednesday morning.
He's now in hospital in Nottingham where his condition is described as very serious.
Police said science teacher Peter Harvey, 49, is being questioned.
The school has declined to comment "at this time".