The severe weather wreaked havoc across the region, with snow causing highway closures and train disruptions.

Heavy snow and strong winds also caused traffic chaos in neighboring Croatia and Serbia, and tens of thousands of homes in Bosnia and Herzegovina were without power.

“Despite efforts and continued efforts to repair the fault, the power supply situation has deteriorated. Currently, 127,000 metering points are without power,” dealer Elektroprivreda BiH said on Tuesday.

Elektrokrajina, which covers municipalities in the Serb entity of Republika Srpska in Bosnia, also announced that some 50,000 of its customers were without power.

“All available on-site teams have been deployed and have been working since the early hours to repair the fault,” the company said.

In western Bosnia, the city of Drvar declared a state of emergency after severe weather blocked all entry and exit points, leaving 17,000 residents isolated.

“The situation is extremely difficult. The snow continues to fall. People are trapped in the snow,” Del Val city council president Jasna Pecanac told local media.

Across the Balkans, authorities issued travel warnings as snow closed some major routes. Bosnia, Serbia and Croatia have banned heavy vehicles and restricted traffic levels on affected roads.

Snowdrifts were as high as 2 meters (6.5 feet) in some villages around Drvar, and the heavy snowstorm made clearing operations more difficult. “We are requesting assistance with snow removal. All available machinery is being used,” Pecanac said.

Affected by heavy snow, primary schools in Banja Luka, the second largest city in Bosnia and Herzegovina and the administrative center of Republika Srpska, were suspended.

A day earlier, some 70 primary and high schools in Unasana state in northwestern Bosnia and Herzegovina also postponed classes.

Railway traffic in parts of Bosnia is also facing total disruption. The country’s state electricity company called the situation in some parts of the country “extremely difficult.” The company said in a statement that heavy, wet snow had paralyzed distribution lines and made them difficult to access.

N1 regional television reported that dozens of cars were stuck in snow in western Bosnia for up to 10 hours before they were able to move on.

In Slovenia, the search for an injured Hungarian hiker missing in the Alps north of the capital Ljubljana has been suspended since Sunday due to strong winds. Rescuers found his female companion on Monday and moved her to safety.

In central Croatia, a mountain rescue team used skis early Tuesday to rescue a man trapped in his car while heading to hospital for dialysis. “We got him there just in time,” said rescuer Dario Cindric.