LLANDUDNO, Wales (UPI) -- Complaints that school children were singing carols too loudly in a Welsh shopping center led to police showing up at the scene.

The 29 students, ages 6-11 from Ysgol San Sior primary school, were given permission to sing carols at the Victoria Center in Llandudno, Wales, to raise money for their school, the Daily Mail reported Wednesday.

However, some shopkeepers complained.

"After a bit, a security guard came over and said we had only meant to be singing for one hour, and could we please stop," said Ian Jones, headmaster of the school. "I just said no, because I knew we were allowed to sing between 11 a.m. and 3 p.m.

"He said he had complaints from tenants that we were too loud and asked us to stop ... In the end, he said we would have to stop or he would call the police."

A police officer arrived at the center and asked the group to turn down the volume of their background music and sing more quietly.

Center manager Sue Nash later admitted that involving security was "a mistake" and said the children will be allowed to return this weekend -- with no volume limits.

Hum bug idiots. Let the children sing.