A large scale emergency simulation will take place in Ballinasloe this evening.
Emergency services will be carrying out the training exercise on the grounds of St. Brigid's Hospital.
While it's being held away from public roads and won't cause disruption, the public are advised they may notice an increase in emergency service vehicles in the area.
They may also hear noise and see simulated smoke during the event, which takes place between 6.30 and 8.30 this evening.