PORTLAND, Ore. (KOIN 6) — Homicide detectives responded to an area south of the Steel Bridge after the body of a woman was found Thursday afternoon.

The 26-year-old woman, whose identity has not yet been released, was found around 3:30 p.m, officials said in a release. She was found on the ground and the cause of death is not known, although officials believe she suffered a medical event. No signs of trauma were visible, authorities said.

Authorities said this is not connected to the body of a 48-year-old man who was found along the banks of the Willamette River earlier in the day.