Teenager questioned over Millais School, Horsham fire
A 16-year-old girl is being questioned by police investigating suspected arson at a girls' school in West Sussex.
The fire badly damaged the top floor of Millais School in Depot Road, Horsham, on Thursday.
The girl was arrested on Sunday, interviewed and bailed. Sussex Police said she had been re-arrested on Monday as a result of further inquiries.
Police had previously said the fire, which broke out at about 15:00 GMT, was started deliberately or recklessly.
Ch Insp Howard Hodges, of Sussex Police, said: "I want to reassure the pupils, parents, school and wider Horsham communities that this investigation will establish the truth of what happened that day.
"We continue to work closely with the school to ensure that our investigation compliments the significant efforts that the school is making to return to normality at the earliest opportunity."
He also urged people to avoid rumour and speculation via social media.
More than 30 firefighters tackled the fire, which closed Depot Road for several hours.
Millais School is a comprehensive for students aged 11-16 and is judged as outstanding by Ofsted.