British viewers were left in shock over a documentary exploring the introduction of armed teachers in US schools.

The Channel 4 programme Teachers Training to Kill visited Butler County in Ohio where Sheriff Richard Kay Jones is campaigning for educators to be given fire arms to protect students in the event of a mass shooting.

Jones hoped to arm teachers in two schools in the county, Madison and Hamilton, even providing training sessions in the Foothills of the Appalachian mountains to train teachers to kill.

While Madison was keen to implement the motion, Hamilton's superintendent Harry Knapp is trying to keep his establishment a gun-free zone.

Channel 4 documentary Teachers Training to Kill saw Hamilton school in Ohio practice a shooting drill

Speaking on the programme he said: 'I don't think teachers want to carry guns. The people that work in schools got in there because they want to help and they want to better everyone who's in that school.

'That's why teachers are there, they love kids, they like working with kids. They didn't get into this to carry guns.

'There's just so many things that could go wrong when you put a deadly weapon in somebody's hand that's not accustomed to handling it.'

In an effort to convince locals that they don't need armed teachers in their school, Knapp organises a shooting drill, inviting local media along to capture it.

A local police officer took on the role as the 'gunman' while staff and students played out what would happen in the instance

The scenes left viewers in shock, describing the scenes as 'more awful than they could imagine'

Many took to Twitter during the programme to express their horror over the situation

Both teachers and students took part, acting out what would happen if a gunmen were to enter the school, leaving many viewers in shock.

Taking to Twitter one wrote: 'Watching Training Teachers to Kill is absolutely terrifying, imagine being 5 years old and having to do a school shooter drill once a week.'

Another said: 'I can't believe what I am watching, channel 4 teachers training to kill! Schools in America actually have mass shooting drills! What is the world coming to?!'

A third wrote: 'Teachers training to kill on @Channel4 is sickening to watch! Little babies no more than 4 being taught lock down drills in case of active shooters in the school?! And then they think the answer is to arm the teacher.'

Another added: 'Watching Teachers Training to Kill on Channel 4... genuine insanity.'

Harry Knapp's efforts to prove that he was equipped enough in the event of an armed intruder failed to convince the sheriff.

Sheriff Richard Kay Jones of Ohio was looking to get armed teachers into both Hamilton and Madison school in the Butler County

Cooper Caffrey, 15, is a student at Madison and three years ago was shot by a fellow pupil - he is against arming teachers in school

Superintendent Harry Knapp (pictured) of Hamilton chose not to arm teachers, however, Madison high school chose to carry the motion

He said: 'I believe that all the school should have at least one or two persons that is armed.

'It doesn't cost anything they're already employed it's just having an extra duty and responsibility of being armed.'

The documentary also met 15-year-old Cooper Caffrey, a student at Madison school.

In 2016 Cooper was one of the two students shot by a 14-year-old pupil at the school - and he is on the rally campaigning for a gun-free schools.

Speaking on the documentary he said: 'School isn't a gun-free zone anymore. I feel threatened by it,

Viewers described the motion as 'insanity'questioning how introducing more guns would solve the problem

'Teachers are people too, just like any high schooler can have an unhinged moment or a bad day a teacher can have that as well.

'All the teachers that I spoke to expressed doubt and didn't want to be responsible for that.'

His father agrees arguing that the local authorities are 'manipulating a situation when my son almost dies to manipulate their own agenda.'

By the end of the summer holidays in 2018, the Hamilton school board announced that they would not be arming their teachers.

However, Cooper's high school, Madison carried the motion and while they have not yet introduced weapons they are the only school in Butler County to agree to it.

Cooper has since left his high school in order to attend one without armed teachers.

Catch up with Teachers Training To Kill on All4