Torso and arm believed to be those of missing Milwaukee teen Sade Robinson wash up on beach along Lake Michigan

More human remains, including a torso, that are believed to belong to a missing woman have washed up on a beach along Lake Michigan, authorities said Thursday.

The torso and an arm believed to belong to 19-year-old Sade Robinson were found Thursday morning along a remote stretch of tree-lined beach in South Milwaukee about a quarter of a mile from an apartment complex, the Milwaukee County Sheriff's Office said.

The remains were found by someone walking on the beach, the office said in a news release.