Nothing is allowed to enter the airspace at present.
A radar issue in the West of Ireland has caused both Cork and Shannon Airport to stop all flights from coming into that particular airspace.
What is being called a significant systems failure has resulted in a "zero flow rate" in Irish aerospace at present.
Dublin Airport is exempt from the issue due to its proximity to UK air traffic control.
Anything already in the airspace was processed through or has succesfully landed, but all other aircrafts are forbidden from entering the airspace at the moment.
Both Cork and Shannon Airport made statements on their official Twitter pages.
https://twitter.com/ShannonAirport/status/1047209151112331265
https://twitter.com/CorkAirport/status/1047219371519746049
Cork Airport have urged those flying via the airport both Tuesday night and Wednesday morning to check the status of their flight, saying: "Please check the status of flights with your airline presently as many aircraft and crews are out of position tonight which may impact on flight operations tomorrow morning."
Shannon Airport have since done the same.