A 15-year-old boy has been arrested following an incident at Rhyl High School.
The high school on Grange Road in Rhyl was cornered off on Friday, June 9 as police made enquiries into a threat made towards a pupil.
All staff and students were told at around 3pm they were not allowed to leave and there was a heavy police presence as the school was in “lockdown”.
Students were allowed to leave the building at around 4pm.
North Wales Police arrested a 15-year-old boy in Llandudno at 4pm and they confirmed on their Twitter account that they were not looking for anyone else in connection with the incident and thanked the public for their help and understanding.
A spokesperson for Denbighshire County Council said: “Following an incident at Rhyl High School this afternoon, it was decided to close the school whilst the police made their enquiries into a threat made towards a pupil from another youth not connected to the school.
“The police attended and assessed the situation and the school reopened shortly afterwards. The incident is now over and at no point were any pupils or staff in danger. We would like to thank the parents and pupils for their co-operation in ensuring everyone’s safety during this time.”