A 12 year-old boy was arrested at Tasker Milward School in Haverfordwest yesterday (Thursday) following a disturbance on the school site.
A spokesman for Dyfed-Powys Police said they had received a call at about 1.50pm of “an ongoing incident” at the school.
The spokesman added: “Two children had attended the site, and were causing a disturbance and being abusive therefore police assistance was requested.
“A 12 year-old boy was arrested on suspicion of criminal damage and section 5 Public Order Act, and has now been bailed pending further enquiries.
“A 13 year old girl was also taken from the scene by officers.”
Social media postings later suggested that a knife was involved but police said that no weapons were involved in the incident.
A spokesman for Pembrokeshire County Council described the incident as involving ‘an intruder’ on the school site and said the school had followed protocol by calling the police.