Parents have called for the head of a failing Birmingham primary school to resign after a damning Ofsted inspection.

Montgomery School, in Sparkbrook, has been branded inadequate, the lowest possible rating, following a visit by the Government watchdog.

The troubled school has now been put into special measures, and faces monitoring visits ahead of a repeat inspection within the next 18 months.

Nearly 200 people have signed a petition calling for head Tony Flynn to quit after inspectors criticised leadership at the school.

Inspectors also found pupil’s progress to be “erratic” and said improvements were “too fragile”.

The damning report follows two staff strikes at the school in December and January, against plans to turn the school into an academy.

Parent Mohammed Ashraf organised the petition, said: “We as parents believe a change of head teacher is critical to the school’s future.”

“The school is getting worse and worse. We are so frustrated and enough is enough. The school has been failing for some years, too many pupils aren’t getting the standard level in English and maths.

“If other schools in the area can improve, then why can’t we?”

The Ofsted report, which was published last week, said pupils’ achievement, leadership and management and quality of teaching were all inadequate.

A third of pupils left the school last year without achieving the benchmark level 4 grade in their English and maths SATs tests.

This was below the Birmingham average of 72 per cent.

The report read: “This school requires special measures because it is failing to give its pupils an acceptable standard of education and the persons responsible for leading, managing or governing the school are not demonstrating the capacity to secure the necessary improvement.”

Montgomery will now receive extra support and monitoring from Ofsted to drive up standards at the school.

Head Mr Flynn declined to comment on the petition, but a school spokesman said the school is hoping to make “rapid improvement”.

The spokesman said: “We are of course disappointment with the Ofsted report, but we are determined to ensure that it will be the opportunity to take the school on to a higher level and provide our children with the quality of education they deserve.

“During the next few weeks we will be working closely with parents as we move to become an academy and we will continue to keep parents fully informed about any changes, and about the improvements we expect to achieve.”