After a small fire in a confined area, the North Terrace of Lansdowne Road was closed for this afternoon's game between Ireland and New Zealand.
The IRFU requested that holders of tickets for the North Terrace stay away as they were not be able to gain access to the grounds.
In a statement the IRFU said they "regret the North Terrace closure and the disappointment and inconvenience caused and assures patrons holding tickets for that area that notices will be issued as soon as possible regarding procedures for a full ticket price refund.
The statement went on: "The decision to close the North Terrace was taken in the interest of safety following consultation between the IRFU, the Gardai and other relevant authorities and North Terrace ticket holders are advised it will not be possible to gain access to any other area of the stadium.
"In the interest of safety and crowd control, North Terrace ticket holders are earnestly asked not to come to the vicinity of the ground.
"The fire arose in a void space beneath the North Terrace and in the best interests of the safety of our patrons, the decision was taken to close the terrace to allow a full safety inspection to be carried out."
