Residents said officers were called to the scene at the junction of Cookson Road and Lamb Drive in Southey Green shortly after 2am.
Pictures taken by a woman who lives nearby show how a police response vehicle with blue flashing lights was dispatched to the scene and the road was cordoned off.
Two police vehicles are still at the road this morning.
No details have been released yet about the incident.Â
We have contacted South Yorkshire Police and will bring you updates when we get them.Â