Authorities said the body, found in the basement of a home, was decomposing and partially dismembered.
Investigators are working to determine the identity of the woman.
BREAKING: Philadelphia Sheriff warrant leads to gruesome discovery in basement of home in 2100 block of Porter St.— George Solis (@GeorgeSolis) January 16, 2020
SVU units also arrived to investigate possible case of human-trafficking.
Sheriff says female body was decomposing and partially dismembered.@6abc pic.twitter.com/TKqAJPl3sN
Philadelphia Sheriff Rochelle Bilal said her office, along with the Philadelphia Police Department's Special Victims Unit, worked in tandem to serve a robbery warrant at the home.
"When we work together, we get things done," Bilal told reporters late Thursday.
According to the sheriff, SVU's Human Trafficking Unit had received a tip about possible human trafficking at the home. They were searching for a missing young woman.
"They were looking for a missing female who was approximately 18-years-old," Bilal said.
Once at the scene, authorities found five people: three males and two females. Some lived at the home, according to Bilal.
Bilal said one of the females was listed on the robbery warrant. The female and the four others were taken into custody.
Authorities discovered the body of the woman in a plastic bin in the basement.
Bilal said it's too early determine if the body belongs to the missing 18-year-old woman SVU was searching for.
"We have a deceased female approximately that age, but she is a Jane Doe until she's identified," Bilal said.