The agents were seen near Greentree Drive and Bradley Road. Several immigrant rights activists showed up to the scene. One told Eyewitness News the agents were not able to detain anyone.
"No reports of anybody being taken," said activist Jorge Rios. "The community got scared. We saw people, you know, trying to come for their family members, thinking that they were arrested."
Herlanda Cobos, who lives in the area, said she locked her doors and stayed inside as agents patrolled the area.
"I've lived up here for 22, 23 years, and being afraid that I could easily get taken into custody because I'm a Latina, not realizing that I'm also American Indian - more so than Latina - and I'm proud to be both," she said.
This isn't the first time a farm in Ventura County has been targeted by agents. In July, federal agents conducted an immigration enforcement operation at Glass House Farms near Camarillo that led to a clash with demonstrators.
Thursday's federal activity comes days after the Supreme Court cleared the way for federal agents to conduct sweeping immigration operations in Los Angeles, the latest victory for President Donald Trump's administration at the high court.
Cobos said as a former farm worker, she can't fathom how the immigrant farmers feel.
"If I'm afraid, I can't imagine how they feel," she said.
Eyewitness News is working to get more information on Thursday's operation in Somis.