FREMONT (CBS SF) – All lanes of Southbound Interstate 880 in Fremont have reopened following an investigation into a fatality Wednesday afternoon.

Fremont Police said that they received a call of a person who either jumped or fell from the Thornton Avenue overpass onto the freeway around 3:44 p.m. Police said officers attempted lifesaving measures, but the person was pronounced dead at the scene by firefighters.

READ MORE: UPDATE: Investigation Underway Into Fatal Freeway Shooting On I-580 In Oakland

No additional details about the death are immediately available.

READ MORE: COVID: Bay Area Health Officials, Schools Prepare To Vaccinate Kids 5-11 As Authorization Looms

Police closed the left two lanes of Southbound 880 near the Thornton Avenue exit as police and the California Highway Patrol investigated, causing a backup into Hayward.

As of 5:35 p.m., all lanes of the freeway were open.

MORE NEWS: COVID: Muni To Suspend 'Short' Line Service Citing Vaccine Mandate Staffing Issues