Sioux Falls police say two men were injured over the weekend when they were attacked with a crowbar.

Officer Sam Clemens says police were called late Friday night to Sanford Hospital, where they met the injured men, one with a large cut on the back of his head and possibly a skull fracture, and the other with a cut to the left side of his head that required several staples to close:

Clemens says the assailants left on their own and the victims, one a 19-year-old Sioux Falls man and the other a 19-year-old from Renner, did not want to press charges. The two who entered the trailer apparently did not take anything, and their identities are not known.