Detroit police said a 67-year-old man was killed Saturday night when someone beat him to death on his porch.

Police said the victim was sitting on his porch in the 750 block of Pingree Street when someone wearing a black ski mask approached and began beating him with an unknown object.

The man died.

Police said they didn’t have any other description of the attacker.

Anyone with information is asked to call Detroit police’s homicide unit at 313-596-2260.