A teacher who restrained a teenage girl suspected of carrying out a knife attack at a school in Wales does not think of himself as a hero, his brother has said.

Darrel Campbell disarmed the alleged attacker after two other staff members and a pupil were stabbed at Ysgol Dyffryn Aman in Ammanford on Wednesday morning.

All three victims have now been discharged from the hospital following the incident, according to Dyfed-Powys Police. A teenage girl has been arrested on suspicion of attempted murder.

Mr Campbell, who intervened, has worked at the Carmarthenshire school for 40 years, according to his brother Cefin Campbell, the Senedd member for Mid and West Wales.

Speaking to the PA news agency about his brother's actions, the politician said: "He [Darrel] is embarrassed by all the attention that he's had, he certainly doesn't consider himself a hero in any way.

"He just told me he just did what most people would have done - he acted instinctively, he saw the danger and took action.

"He really wants to play down anything more than just being a normal citizen, albeit a teacher in a school facing a very challenging situation."

Dyfed-Powys Police said the incident happened at about 11.20am on Wednesday morning.

Forensic investigators at Amman Valley school, in Ammanford, Carmarthenshire. Pic PA
Image: Forensic investigators at the school in Ammanford. Pic: PA
Police officers outside Amman Valley school, in Ammanford, Carmarthenshire. Pic: PA
Image: Police officers outside the school. Pic: PA

The force confirmed the school was put into lockdown "for the safety of all on the premises".

Pupils were released from the school at around 3.20pm, with hundreds of parents gathered outside to collect them.

The comprehensive school in the town of Ammanford in Carmarthenshire has around 1,500 pupils between the ages of 11 and 18.

Headteacher James Durbridge said the school would provide wellbeing support to all affected.

He described it as a "very difficult day" for the school, and said that his thoughts were with the three people injured, and their families.

The school did not open on Thursday to allow police to continue their investigation.

Pic: WNS Three people have been stabbed at a high school put into lockdown after a knife attack in the grounds. Parents say a female teacher and two pupils are fearing to be the victims of the stabbing - with police saying a lone suspect has been detained. More than 10 police cars and two air ambulance helicopters were sent to the school in Ammanford, Carmarthenshire, after reports of a major incident. Parents reported the heavy police presence and air ambulances landing nearby the playing fi
Image: Pic: WNS

'Shocking incident'

Superintendent Ross Evans, Carmarthenshire Commander, said police were working with the school and other agencies to ensure "appropriate support is available to all involved".

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"We urge anyone affected by yesterday's events to seek support, and not to share any videos, photos or information that might cause further distress to pupils or parents at the school," he said.

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Leader of Carmarthenshire County Council Darren Price praised the teachers, staff and pupils of Ysgol Dyffryn Aman "for the way they've responded to this shocking incident".

"As a council, our priority now is to do all that we can over the coming days and weeks to support the pupils and staff in the aftermath," he said.

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