A secondary school in Swansea has denied parents and pupils claims that '70-odd children' were 'kept in a hall all day' because they didn't have the school badge on their trousers.
Penyrheol Comprehensive in Swansea confirmed that pupils were spoken to about their uniforms.
Parents claim their children were isolated from lessons all day including some pupils who were experiencing their first day in secondary school.
A recording has emerged which appears to be of pupils at a Swansea school being told they 'won't be welcome' unless they wear trousers displaying a special logo.
The audio clip has been widely shared on social media in connection with Penyrheol Comprehensive where up to 70 pupils were claimed by some parents to have been kept in a hall all day because they weren't wearing the correct uniform .
A uniform change at the Gorseinon school has meant pupils are now required to wear trousers and skirts which have the school logo on.
Pupils without the correct uniform were gathered for a meeting to remind them of the school's dress code, with some parents claiming that around 70 pupils were 'kept in a hall all day', although the school said pupils were asked to meet, solely so staff could check if they had uniforms on order.
ITV News received a recording circulated in connection with the situation at Penyrheol in which, parents say, a man can be heard apparently telling schoolchildren they 'won't be welcome' at the school unless they are in the correct uniform.
In a second clip, the man on the recording goes on to say there are others who haven’t ordered the uniform yet.
ITV News spoke to pupil, Tyrhys Varcianna, and his mother, Michelle Phillips. They explained that they ordered the school trousers and they were too big, so Tyrhys went in shorts with the logo. Tyrhys claims he was kept in the 'theatre room' for three hours and later sent home.
Another mum of two pupils at the school has said she thinks parents should be allowed to buy their own skirts and trousers for their children and have the badge put on them instead.
An online petition has now been launched in a bid to change the uniform policy at the school and has already received more than 2,500 signatures.
Last Thursday a spokesman for Penyrheol Comprehensive School explained how a change had been made to the school uniform so pupils wore trousers or skirts that carried the Penyrheol logo 'to ensure that they meet the standards of dress required'.
After being made aware of the audio clip, Penyrheol issued a further statement last Friday.
Penyrheol Comprehensive has more than 900 pupils attending the school.
In a Facebook post, Swansea Council leader Rob Stewart said the school's stance was 'unacceptable'.