MADISON, Wis. (AP) Police say one of four men remodeled a restaurant in Madison during off hours died when two armed, masked men tried to rob the establishment.

A police report says the two robbers entered the Culver's restaurant about 3 a.m. Tuesday while the four contractors were working. One targeted the restaurant's safe while the other robber held the men at gunpoint.

The report says one of the four workers, a 56-year-old man, died during the commission of the crime. The cause of his death is under investigation, but police consider it a homicide.

Authorities say the workers aren't from Dane County. Police provided no additional details.