Scattered attacks on cars and the torching of property continued for a fourth day across Belgium Wednesday, but the intensity was still incomparable to the rioting in neighboring France. More than half a dozen fires were reported in several cities, including the capital, but no one was injured. Police detained several suspects, including three in Brussels, government spokesman Peter Mertens said. About 15 fires in all were reported in several cities scattered around the nation Tuesday night, but all were isolated incidents of local youths and no major confrontations with police were reported. On Sunday and Monday, a dozen cars were set alight.