TULSA, OK -- Tulsa Police say a slick spot on the Broken Arrow Expressway in Tulsa is being blamed for an overnight accident involving two cars. 

Police say the driver of one car hit an icy spot and lost control on the westbound curve of the Broken Arrow Expressway just east of Utica heading into downtown.  

That car collided with another car going the same way. 

No one in either car was hurt.