A 15-year-old boy has been arrested on suspicion of arson following a fire that damaged cricket nets and the flooring at Cromer High School sports centre on Saturday.

Police responded to reports of a teenager seen in the area at the time when the fire was started, and arrested the youth half a mile away from the school.

He has been released on conditional bail pending further police enquiries.

Cromer Safer Neighbourhood Team sergeant Gary Read said: 'The quick actions of witnesses in this case meant police were on the scene quickly to take positive action.'

A fire engine from Cromer and one from Sheringham were called to the blaze at 7.45am, as well as an aerial ladder brought in from Earlham. Just over half an hour after arriving on the scene they had put out the flames.

David Fincham, chairman of the board of governors at the school, said that the damage was limited. 'It's a very small one in the sports hall,' he said. 'I went for a brief visit and it doesn't look serious at all.'

The school was open as usual on Monday.