Chinese officials say fighting between ethnic groups in central Henan province has been brought under control, after seven people were killed.
The official Xinhua news agency reports 42 people were injured in the clashes, which residents say were between members of the majority Han community and the Hui Muslim ethnic group.
The Chinese news agency says 18 people have been arrested.
Residents and officials in Henan province say the fighting began after a traffic accident last week (in the town of Langchenggang).
Han Chinese make up more than 90 percent of China's population, but the country has 55 officially recognized ethnic groups. Information about clashes between groups is hard to come by, since the government suppresses information about social conflict.