Neo-Nazis clashed with protesters at an anti-racism rally in Sweden and at least four people were injured, two of them police officers, authorities said. Twenty-eight people were arrested. The fighting broke out in Stockholm Sunday as a group of 200 people held an organized, legal rally against growing neo-Nazi sentiment in the area, CNN reported. Police spokesman Sven-Erik Olsson said about 40 neo-Nazis threw stones, bottles and fireworks at the protesters.