Some hoodlums and Haisa traders in Osogbo, the Osun State capital have clashed in the Sabo area of the town on Saturday.
Some persons were said to have been injured in the clash but this has not been confirmed by the police.
Police have deployed armed men to the scene to prevent the situation from degenerating further.
Although the cause of the clash has not been ascertained , some residents of the area said the hoodlums wanted to extort the traders but they resisted.
The Police Public Relations Officer in the State, Yemisi Opalola, said policemen had been deployed in the area and the situation had been brought under control.
Some residents were seen fleeing from the direction while some vehicles were seen making a detour to avoid running into the fighters.