Flights at one of the UK’s busiest airports have resumed after dozens of planes were grounded due to heavy snowfall.

Despite teams “working through the night” Glasgow Airport confirmed flights had been cancelled on Saturday morning due to heavy snow.

Two flights bound for Glasgow had to be diverted to Prestwick and Edinburgh airports.

Passengers have been urged to check with their airline before they travel.

It comes as much of the UK has been warned to expect a freezing cold start to Saturday.

The Met’s Office yellow warnings, which are in force from 17:00 on Friday until just before noon on Saturday, mean people could face hazardous conditions, with disruption and delays likely on roads and railways and icy patches on roads and pavements.

The weather agency has warned freezing rain, a rare type of precipitation which freezes on impact, could make driving dangerous.

The weather is also causing issues on the railways.

There are a number of cancellations on ScotRail routes from Glasgow Central due to signalling issues caused by the weather.

The rail operator said “staff are working as quickly as possible to rectify the issues”.

Separately, the UK Health Security Agency has issued an amber cold-health alert for the health sector for a number of regions in England, meaning “significant impacts are probable”.

Cold weather is likely to affect the whole health service, with the potential for the entire population to be at risk, the agency’s alert says.

The alert is in place for the East Midlands, West Midlands, North West, North East and Yorkshire and the Humber until 5 December.

Temperatures of between -3C (27F) to -6C (21F) were widely seen across the UK on Friday, even in major towns and cities. It was -5C (23F) in Manchester and Edinburgh and -3C (27F) in south-west London and Birmingham.

Snow swept across south-west England, parts of Yorkshire, the North East and Scotland, while hilly areas – including the North York Moors and parts of Scotland – will see more snow later, forecasters said.

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