By Sean Coughlan Education correspondent

Image copyright Thinkstock Image caption Inspectors say there were leaflets warning against music, singing and dancing

Ofsted inspectors have criticised an Islamic independent school, where they found leaflets which claimed music and dancing were "acts of the devil".

Inspectors made an unannounced visit to the Darul Uloom Islamic High School in Birmingham after having previously rated the school as "inadequate".

Inspectors said pupils were not being protected from "extreme views".

An Ofsted inspection last year had found weaknesses with the school and inspectors returned without warning to monitor how an improvement plan was being implemented.

But inspectors found printed material with "extremist views".

"A large number of copies of a leaflet containing highly concerning and extremist views, such as "Music, dancing and singing are acts of devil and prohibited" were discovered during the inspection.

"The leaflets were found in areas shared by the school and adjoining mosque which are used by leaders and in areas used by the pupils from the school," said the inspectors.

Image copyright Thinkstock Image caption Inspectors thought the leaflets were discouraging people from attending a local music fesitval

Ofsted says that it is not clear who produced the leaflets, which they added seemed to be calling for a boycott of a local music festival.

The leaflet is understood to have made reference to music in terms of "public indecency" and the "proliferation of sinful activities".

The inspection report of the school, which teaches boys from the ages of 11 to 16, says the school needs to put in practice its commitment to safeguarding pupils.

It also warns that there is a lack of evidence that the lessons match the published curriculum.

"For example, the policy states that the biggest timetable weighting has been given to English and mathematics, but inspection evidence and school timetables show that pupils study Arabic for approximately half of the school day."

The report says the school must take action to meet the requirements of independent school regulations.

The school was previously criticised by Ofsted for what appeared to the segregation of male and female governors

Ofsted had reported that the school's only female governor sat in an adjacent room during meetings.

But the school challenged this, saying that the female governor was making a choice to sit separately and that this arrangement was respecting her rights.

"The right for a person to choose is a universal value," said the statement from the school.