Posted Monday, July 2, 2012 --- 8:55 a.m.

GREEN BAY, Wis. (AP) -- Green Bay police have arrested a 31-year-old man after finding his girlfriend dead in the basement of their apartment.

The man was taken into custody Sunday on a tentative murder charge in the death of the 26-year-old woman, whose name has not been released.

The man is expected to be in court Monday afternoon.

The Green Bay Press-Gazette reports (http://gbpg.net/MD9ZGB ) the man went to a friend's house crying and said he had hurt his girlfriend. The friend called police at about 5 p.m. Saturday and urged them to check the apartment.

The man allegedly told investigators an argument between him and his girlfriend had become physical.

A four-year-old boy described as the victim's son from a previous relationship was found in the apartment unharmed.

------

Information from: Green Bay Press-Gazette, http://www.greenbaypressgazette.com

Copyright 2012. The Associated Press.