There's a nationwide status orange fog warning in place today.
Met Éireann issued the warning last night and it's valid until midnight tonight.
?Status Orange?
Fog Warning for IrelandValid from tonight 00:00 on Monday 18-Dec-2017 until tomorrow 23:00 Monday 18-Dec-2017
See https://t.co/9BeK3UcAwO pic.twitter.com/SxNWjfgW8r
— Met Éireann (@MetEireann) December 17, 2017
So far, Connacht, the Midlands and Munster are the worst affected areas.
Road users are being warned to be extra cautious due to poor visibility.
Motorists are advised to reduce their speed, keep a safe distance from the vehicle in front and use their fog lights in the affected areas but don't forget to turn them off afterwards.