Prison officers have said that violence, intimidation, weapons and drug smuggling are all increasing due to overcrowding.
There are currently 6,600 prisoners in the prison system which is over 1,900 more than the number of beds available.
The Prison Officers’ Association (POA) described the conditions in the country's prison as a "national scandal."
Overcrowding has been an ongoing issue the past few years, and many prison officers say that it is the cause of many other issues within the prison system.
The overcrowding has led to an increase in violence and attacks on staff, and facilitates the increased smuggling of drugs, weapons and mobile phones.
Direct attacks have increased by 23% since last year and violent incidents in the prisons has increased by 37.5%.
According to reports, more people are being sent to prison every year but only one prison has been built in 26 years.
POA Acting President Peter Redmond describes the neglect in Irish prisons as their are many prisoners sleeping on floors and there are over 2,500 prisoners on a waiting list for psychological support with many leaving without assessment or treatment.
Deputy General Secretary of Prison Officers' Association Gabriel Keaveny said "prisons are in an ongoing state of crisis" due to overcrowding.
"Prisons are in an ongoing state of crisis, our members are trying to manage this on a daily basis, and all the figures are on an upward trajectory across all the various different headings. It's a truly impossible task that our members are being asked to do on a daily basis," he said.
"We've seen over 400 drone drops this year alone, we believe it's more than that. Drug seizures are up by 28%, phone seizures are up by 31%, weapon seizures are up by 70%," he said explaining that this a consequence of overcrowding.
