POMONA (CBSLA.com) — Police Thursday investigated the circumstances surrounding the death of a female pedestrian in Pomona.

Shortly after 1 a.m., officers were sent to the area of First Street and Palomares Avenue for report of a pedestrian being struck by a train.

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According to the Pomona Police Department, an adult female was pronounced dead at the scene upon officers arrival.

The victim’s identity is being withheld pending family notification.

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Union Pacific Railroad Police responded to assist in the investigation.

Palomares Avenue will remain closed for several hours in both directions at First Street, police said.

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Motorists were urged to use either Garey or Towne avenues to avoid the railroad tracks until the roadway is re-opened.