Temperatures are set to plunge across the UK this week due to an "arctic blast", with snow even predicted for Northern Ireland.
Forecasters expect that the cold snap will really start taking hold from Wednesday, with temperatures expected to be around the freezing mark and dipping down to sub-zero overnight.
It comes as lower temperatures were experienced across the UK on Saturday into Sunday, with lows of between between 1 and 4 degrees evident on Sunday morning.
