Wintry weather has caused disruption across Northern Ireland with snow and sleet falling through the day.
Snowy conditions were reported across Antrim, Derry and Donegal throughout the day, causing traffic build-up due to poor visibility, and a number of minor accidents.
The Met Office issued a weather warning for ice and snow, which is valid between 4pm on Tuesday and 11am on Wednesday, and highlighted areas in the north and west most at risk.
Ice could form on some surfaces overnight, with further wintry showers, and people were urged to be wary of injuries from falls on icy surfaces.
The Met Office said “higher routes such as Glenshane Pass and parts of the M2” were among the worst affected by the snowfall.
Belfast International Airport was forced to close its runway due to heavy snow, causing delays to several flights.
Update 18:15 Our snow teams are continuing to clear snow from the runways and aprons and we are aiming to reopen shortly. Delays and disruption to flights can be expected because of this so please check with your airline for latest flight updates.— Belfast Airport (@belfastairport) January 22, 2019
The snow had been cleared by around 7pm and the runway reopened, but flights have been severely impacted for several hours.
The PSNI advised motorists to reduce their speed and be cautious when driving and to avoid unnecessary journeys.
Snowy conditions have been reported across Antrim, Derry and Donegal this evening. Remember it can take you approx. 10 times longer to stop in snow or ice. pic.twitter.com/ECsqKIHbu2— AA Roadwatch (@aaroadwatch) January 22, 2019
Translink said it was “making every effort” to keep public transport services moving during the snow.
“Safety is our top priority and some routes may face unavoidable revisions or cancellations in worst affected areas,” a spokesman said.