Police are investigating a suspicious death after a woman's torso was found in the marshlands near the Dumbarton Pier in Fremont.
The human remains were found Sunday night by a group of people fishing at the pier, located at the eastern foot of the Dumbarton Bridge, police said.
Police on Tuesday said the woman's arms, legs and head were not located and appear to have been severed from the torso. Detectives are treating the area as a crime scene.
Investigators spent late Monday and most of Tuesday searching the water and levees around the Dumbarton Bridge.
It is unknown how long the remains had been in the water or how long it had been in the area, police said. Investigators also do not know if the torso was dumped at the site or if it was washed up.
Fremont police are also checking missing persons reports and collaborating with other Bay Area law enforcement.
The coroner also returned to the scene on Tuesday, but would not discuss why they were there or if there was a new discovery.
The discovery and suspicious death investigation has some residents on edge.
"This is a first. Now it's got me scared," said Fremont-resident Ed Reue, who was in the area Tuesday as detectives investigated the case. "They told us, everybody, to leave and don't go under the bridge."
Fremont police are asking that anyone who has information about the remains call their crimes against persons unit at 510-790-6900.
Bay City News contributed to this report.