NORWALK (CBSLA) — Shots were fired at deputies on patrol Friday night in Norwalk, but preliminary searches failed to find any suspects.

The shooting occurred at about 10 p.m. when a group of deputies were gathered near the intersection of Alondra and Pioneer boulevards to discuss an incident that had happened nearby, according to the Los Angeles Sheriff’s Department.

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Deputies said they heard at least four shots and believed the gunfire was meant for them, but could not determine where the shots came from. A K-9 unit responded to the scene for a search of the area, but nobody was taken into custody, the sheriff’s department said.

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At about 11 p.m., deputies broke down the containment area, but said that the investigation into the incident would continue.

A description of the shooter or shooters was not immediately available.

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(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. City News Service contributed to this report.)