Airports closed down or delayed flights across the continent, roads were coated in an impassible mix of ice and snow and even Europe’s vaulted high-speed trains struggled to cope.

Authorities declared a state of emergency in three Balkan countries on Thursday — Bosnia, Serbia and Montenegro — and were evacuating hundreds of people after heavy rainfall caused severe flooding along the Drina River — the worst in 104 years, officials said.

“From my terrace, I no longer see a river, but a lake that has flooded parts of the town’s center,” said Muris Razanica, whose hillside hotel has a stunning view of the Bosnian town of Gorazde.

“This area is famous for rafting but if this goes on, big ships will be able to dock in Gorazde, it’s really unbelievable,” he added as the federal army turned out to help evacuate people.

Heavy snow caused havoc across Britain, keeping airports closed for a second day, leaving travelers stranded and forcing thousands of schools to close.

Met Office forecasters warned of severe weather and heavy snow, particularly in southern and eastern regions, as Britain’s worst early winter weather in almost two decades showed no sign of easing its icy grip. Days of sub-zero temperatures and snow have caused chaos and could be costing the economy £1.2 billion a day, according to insurer RSA.

Britain’s biggest retailers have also warned the weather was affecting sales.

The Prime Minister’s spokesman rejected criticism that the authorities have been caught napping.

“Our view is that we are much better prepared than we were last year,” he told reporters.

“There is always going to be some disruption when you have an extended period of cold weather.”

But hundreds of travelers spent the night sleeping in their vehicles or in airport lounges.

Gatwick, the country’s second busiest airport, said it would remain closed until at least 6 a.m. on Friday because of more heavy snowfalls.

Edinburgh airport said it hoped to reopen at 4 p.m. on Thursday, while London’s smaller City Airport said it would stay closed until 2 p.m.

Britons Andy Jenkins, 59, and Kim London, 52, who are due to marry in Las Vegas next week, said they were considering having the ceremony at the airport’s chapel instead.

“I know if I’m not married by Monday I will be absolutely gutted. It’s nobody’s fault but we’re in a situation beyond our control,” London said.

Eurostar, which runs train services connecting Britain to France and Belgium, said it would be operating a “significantly reduced timetable on Thursday” because of the bad weather.

Services would be subject to delays of up to 90 minutes and some would be canceled, it said.

Ice also created hazardous conditions on roads across the country, with two people being killed when a car collided with a Royal Mail van in Cumbria early on Thursday, police said.

Around 200 drivers spent a second night sleeping in their vehicles or at a nearby village hall in Yorkshire while passengers on a train to Brighton had to sleep in the carriages, the BBC reported.

More than 7,000 schools across England were closed and many expected to stay shut on Friday, some for the fourth day in a row.