Children spat at animals and left a fellow pupil unconscious during a chaotic school outing to London zoo.
The Year 7 pupils were seen spitting on birds in the zoo’s Snowdon Aviary, reports the Croydon Advertiser.
A pupil had to be treated in hospital after being knocked unconscious when his head was reportedly pushed into a glass panel.
London Zoo staff have been in contact with St Andrew’s Church of England High School in Croydon to outline their "concerns" following the end of term trip.
An email seen by the Croydon Advertiser, which was sent by the zoo to the school’s headteacher Kerry Targett, described “completely unacceptable behaviour”.
Referring to the arrival of their first aider to treat the injured boy, the email said:
Upon their arrival the first aider was greeted by a very large group from the same school who appeared to be very loud, boisterous and had a lack of adult supervision.
Headteacher Mrs Targett said "one or two" students misbehaved, and denied claims some pupils were left unsupervised, saying the trip was "sufficiently staffed".
For the majority this was a great opportunity to find out about the wonderful breeding programmes that are in place to save some of our most endangered species.
Our trained staff responded immediately to the events during the St Andrew's school visit, and we followed up with the school to make sure the young boy who was injured was OK, and to outline some of our concerns with their visit.