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SACRAMENTO—

Authorities have called off their search for a man that witnesses reportedly saw falling into the American River near the Fair Oaks Bridge Saturday evening.

Sacramento Metro Fire units resumed their search 8 a.m. Sunday. A helicopter, human remains dogs and DART crews were out to try and find any signs of a possible victim.

DART units used sonar, but couldn’t find anything. The helicopter didn’t see anything suspicious from above, either.

Finally, the human remains dogs reportedly couldn’t find anything as well, Metro Fire says.

Due to coming up empty, search operations were terminated by noon.

At least six witnesses reported seeing a man at the top of a bluff fall into the river after the bluff collapsed. Initial responders on Sunday couldn’t find any sign of a victim, but the witnesses were able to convince crews to keep searching.

A Sacramento Fire Department search dog was called to the scene and was said to have given a “strong indication” that someone may be in the debris pile from the collapse.

Make sure to watch FOX40 News at 5 for a full report from Andria Borba.