Players had to change next to bins in squalid conditions ahead of their inter-pro derby at Energia Park.
The IRFU has asked for reports from Connacht and Leinster regarding last week's facilities at Energia Park.
The association has agreed to a Connacht request to investigate why they and Ulster were forced to change in temporary facilities close to bins.
The IRFU say they are appalled by the situation.
Controversy erupted following a widespread online video showing the filthy changing facilities that were set up for the women's inter-pro finale, with rats reportedly scurrying nearby.https://t.co/IsDDF6lvR9
— Irish Independent Sport (@IndoSport) September 16, 2021

Under 21's Republic Of Manager Has Full Faith In Teams Abilities
Wednesday's Sport Update
Budget 2027 Allocates Additional €1 Million To League Of Ireland Games
€22million Allocated In The Budget To Help Support 2027 Ryder Cup And Euro 2028
Novak Djokovic Wins His First Tennis Title Of The Year
Tuesday Morning Sports Update
Jamison Gibson-Park Returns To Training With Leinster
Munster Will Assess Team Today Ahead Of URC Clash With Ulster