Croatia: Nazi-sympathising singer's gig draws massive crowd to Zagreb

A concert by a singer known for pro-Nazi sympathies will draw a record-breaking 450,000 fans to Zagreb this weekend and Croatian authorities on Wednesday warned people to steer clear as the event jams its streets.

A dozen hospitals have been put on alert to brace for a surge in demand during the Thompson concert on Saturday, while thousands of police will be deployed to manage the influx into a city already hosting summer tourists. A field hospital with 200 beds will also be set up near the racecourse venue and fans have been warned to prepare for summer heat.

The concert sold out in just a few days in April, with a third of his fans under 28, according to the ticketing platform Entrio. Police said there would be at least 450,000 people at Croatia's biggest concert.