A storm ravaging southwestern Sweden has cut off the electricity supply to some 12,000 homes and has disrupted ferry services between Sweden and Germany.

Ferry operator Scandlines said Sunday it has canceled its operations between Swedish town Trelleborg and Sassnitz in Germany due to the storm. Another operator, TT-Line said its ferries from Trelleborg to Rostock and Travemunde were severely delayed.

Utilities Vattenfall, Fortum and Eon said the storm has cut off electricity supply to around 12,000 of their clients.

The Swedish Meteorological and Hydrological Institute has issued a class 3 warning for the storm, its highest level, saying the extreme winds could pose danger to the public and disrupt services.