Around 2,700 jobs are at risk after one of the UK's biggest parcel delivery services companies fell into administration on Christmas Eve.
The Met Office has issued an updated weather warning, with snow and ice set to make conditions potentially dangerous in a number of regions.
- East of England
- North West England
- East Midlands
- Yorkshire & Humber
- West Midlands
- London & South East England
According to the warning, even when the snow has cleared roads may remain dangerous due to ice.
U.S. forces and their allies staged 39 air strikes on Islamic State forces in Iraq and Syria over the past two days, the Combined Joint Task Force said on Friday.
Fighters, bombers and remotely controlled aircraft hit 19 targets in Syria while 20 strikes were carried out in Iraq, a task force statement said.
New York Police officers have today been paying their respects to one of the two officers murdered as he sat in his squad car last week.
Rafael Ramos and his partner Wenjian Liu were shot when they were sitting in their car in Brooklyn, with the gunman killing himself shortly after.
Hundreds of mourners attended a church in the Queen's area for Ramos' wake.
Business Secretary Vince Cable has said the news of City Link being plunged into administration is a "bitter blow" for the parcel company's workforce.
In a statement the Liberal Democrat minister said:
Liverpool Airport has temporarily closed after a "deluge" of snow.
A John Lennon Airport spokesman said four flights from Malta, Berlin and Bucharest had been diverted to Manchester Airport, while a fifth from the Isle of Man had returned to the island's airport.
He added: "We are currently closed. It is just while we are clearing the runway. We have had quite a deluge here."
Police have issued warnings for roads in the Midlands and North West because of snow and sleet.
Snow has forced Liverpool's John Lennon Airport to close. Five flights into the north west airport have so far been rerouted elsewhere to allow runways to be cleared, a spokesman said.
Snow has been falling in parts of North Wales, the North West and the Midlands, with a Met Office Level Three amber cold weather alert in place and a yellow warning of snow across a large swathe of the UK.
David Sidebottom, passenger director at the independent watchdog Passenger Focus, said: "Investment in maintenance and improvement is necessary, and we passengers understand that.
"But overrunning works that disrupt already-limited festive travel are frustrating.
"Our research is clear: passengers want to be kept on the train wherever possible, they want to know before buying a ticket if part of the journey will be by bus, and they want plenty of staff on hand to signpost where to go and what to do.
"We will be looking to see that operators and Network Rail are doing all in their power to alert passengers, to help them make alternative arrangements and to make it easy for them to claim refunds or compensation."
Network Rail confirmed that trains to and from King's Cross would be cancelled tomorrow due to the overrunning engineering works.
The railways operator said that the work was part of a £200 million Christmas investment programme.
It is one of 300 projects being undertaken over the holidays across 2,000 sites up and down the country by some 11,000 railway engineers.
A spokesman said: "What has happened is really regrettable and unfortunate, but it is a small part of a massive amount of engineering investment taking place over Christmas."