Federal agents were spotted conducting an operation in East Boston on Wednesday.

The agents, wearing vests marked “POLICE — federal agent,” could be seen going door to door Wednesday afternoon, including at a home on Paris Street. At one point NBC10 Boston cameras captured agents putting a man inside a vehicle, apparently in custody.

The lack of clarity has neighbors on edge in a heavily migrant neighborhood concerned about how President Donald Trump’s new immigration policies could lead to enforcement actions in their communities.

“It is very sad to see someone leaving and not knowing what happened,” a neighbor named Bruno told Telemundo Nueva Inglaterra in Spanish.

José Marques Lima, who lives nearby with his family, said they saw the agents coming through the neighborhood and looking around.

NBC10 Boston did reach out to Immigration and Customs officials for comment but has not heard back.

In-depth news coverage of the Greater Boston Area.

“It’s quite scary and it’s causing a lot of concern among people in the community,” said Jeff Thielman, CEO of the International Institute of New England, which helps immigrants and refugees.

He says there are roughly 11 million undocumented people across the country.

“If millions of immigrants are deported, they will take the economy with them, because they work in many industries that are vital,” said Thielman.

“We do need immigrants, but there are many people waiting to come into the country legally,” said Janet Fogarty, a Massachusetts delegate to the Republican National Convention. “It is one of the first things President Trump said he’d do on Day 1 upon retaking the Oval Office, and he certainly has kept that promise, I support it.”

Fogarty is confident the arrests will be targeted.

“I don’t think we’re going to get everyone out who came here illegally, and President Trump has said the priority is going to be on those who have committed crimes, and those will be the first people deported,” said Fogarty.

Stay with NBC10 Boston as this story develops.