Local leaders and farmers say they've been hearing of the rumors for around four weeks, but have yet to see any sweeps in the area.
"It all started back in Madera. It was rumored that they said they picked up 800 people at the swap meat," said labor contractor, George Rodriguez.
George Rodriguez oversees hundreds of farm workers in the Central Valley.
He sees first hand how workers are frightened of sweeps, checkpoints and even raids by Border Patrol and ICE.
"As soon as the text message comes in it spreads like wildfire throughout the crews," said Rodriguez.
Fresno County Sheriff Margaret Mims says it's just not true.
"Robberies, burglaries, child molest, drug trafficking...those are what we're focusing on, not going after people just because of their immigration status," said Sheriff Margaret Mims.
There are concerns the raid reports are being spread by enemies of immigration reform, but there have also been reports of vans approaching, even abducting undocumented workers.
"It could be human trafficking actually going on and people have been apprehended and are afraid to say anything because they've been threatened," said Manuel Cunha with the Nisei Farmers League.
The Mexican consulate in Fresno is asking victims to come forward so that the proper action can be taken.
"Because if we are not able to document things, we are not going to be able to stop these rumors here," said Sandra Mendoza with the Consulate of Mexico in Fresno.
They want workers to know they're not being targeted and that they don't have to live in fear.
"It all started back in Madera. It was rumored that they said they picked up 800 people at the swap meat," said labor contractor, George Rodriguez.
George Rodriguez oversees hundreds of farm workers in the Central Valley.
He sees first hand how workers are frightened of sweeps, checkpoints and even raids by Border Patrol and ICE.
"As soon as the text message comes in it spreads like wildfire throughout the crews," said Rodriguez.
Fresno County Sheriff Margaret Mims says it's just not true.
"Robberies, burglaries, child molest, drug trafficking...those are what we're focusing on, not going after people just because of their immigration status," said Sheriff Margaret Mims.
There are concerns the raid reports are being spread by enemies of immigration reform, but there have also been reports of vans approaching, even abducting undocumented workers.
"It could be human trafficking actually going on and people have been apprehended and are afraid to say anything because they've been threatened," said Manuel Cunha with the Nisei Farmers League.
The Mexican consulate in Fresno is asking victims to come forward so that the proper action can be taken.
"Because if we are not able to document things, we are not going to be able to stop these rumors here," said Sandra Mendoza with the Consulate of Mexico in Fresno.
They want workers to know they're not being targeted and that they don't have to live in fear.