Disruption to travel across parts of Scotland is set to continue even after the expiry of a severe weather warning.

A number of rail and bus services in the amber alert area have been suspended throughout Friday morning over concerns for safety of staff and passengers.

But transport minister Humza Yousaf said roads teams will need time to make routes safe even after the Met Office's amber snow warning expires at 10am and advised motorists to avoid travel.

He tweeted: "Please don't assume on Fri 10.01am that trunk road network will be completely clear.

"Gritters etc will need time for post Red/Amber recovery."

A yellow warning for snow will remain in place across Scotland until Saturday night.

The Ministry of Defence have been called in to transport medics to and from Edinburgh's two biggest hospitals after a request from NHS Lothian to the Scottish Government.

More than 200 NHS staff will be taken to work in military 4x4 vehicles.

The extreme weather has seen health boards cancel non-essential operations and outpatient appointments on Friday, while NHS 24 has described its operations as being "stretched".

Princess Royal Maternity Hospital in Glasgow also saw tiles fly from its roof under pressure from the extreme weather.

Hundreds of vehicles were stuck on the M80 until Thursday afternoon, with some spending the night in their cars and others abandoning their vehicles on the motorway.

As difficult conditions are set to continue, flights at Scotland's busiest airports are facing another day of disruption and cancellations.

Glasgow and Edinburgh first called a halt to routes on Wednesday and will be reassessing safety in the morning.

Passengers have been warned to only travel to the airport once they have checked the status of their flight with the airline.

ScotRail has said no services will be running through the amber alert area until tests are carried out on tracks, while Virgin Trains has said its west coast route to Scotland could be closed while is eastern line will be limited.

Lothian Buses are among a number of operators warning of disruption to its routes on Friday morning, saying none will be running until at least 6am.

Almost all schools across Scotland will be closed on Friday, with many universities also shut.