Police were called to a Longmont neighborhood on Friday morning after the presence of federal agents prompted advocates to believe there were Immigration and Customs Enforcement officers on scene.

According to scanner traffic, dispatch was notified that a group of five to six people were in the area of Baker Street and Longs Peak Avenue banging on the windows of vehicles.

Longmont police said they are looking into the incident and have not confirmed if people were banging on the windows of vehicles.

FBI spokeswoman Vikki Migoya confirmed on Friday that FBI agents were at Martin Street and Longs Peak Avenue and were not detaining individuals because of their immigration status. Migoya confirmed that ICE agents were not on scene.

Police told a Longmont Times-Call photographer on scene that the vehicles belonged to the FBI and they were executing a warrant for an individual accused of child sexual assault.

On Facebook, the Colorado Rapid Response Network posted that at 7:30 a.m., there was “confirmed and ongoing” ICE presence in the same area and posted photos of a vehicle they believed belonged to ICE agents. In a later update, they wrote that volunteers confronted the ICE agents and used a bullhorn to share their rights.

The group wrote that police were called on the volunteers by the ICE agents, no one was detained and no warrant was provided.

As of 8:30 a.m., the suspected ICE vehicle and police had left the area, according to the photographer.The incident comes after a week of alerts made by the Rapid Response Network about possible ICE presence in Longmont. On Tuesday, the group posted on Facebook that one person had been detained near Fourth Avenue and Collyer Street. The post stated that one officer was wearing a vest labeled with “ERO (Enforcement and Removal Operations). …”

The Colorado Rapid Response Network works to respond and provide information relating to ICE raids and deportations across Colorado, according to its website.

Jennifer Piper, the American Friends Service Committee’s western region program director, said Friday that her organization has documented consistent ICE activity that targets a wide range of individuals, including undocumented immigrants, recent asylum seekers, and those under Deferred Action for Childhood Arrivals or Temporary Protected Status.

“In Longmont and Boulder, this has mostly looked like people being stopped in their vehicles or detained at gas stations, as well as at their houses and on the way to work,” Piper said.

She later added: “Oftentimes, ICE activity does not become part of the public consciousness because they are dressed like everyday people, they drive undercover cars, and they often move very quickly.”

A number of Latino advocacy groups that the Times-Call reached out to Friday declined to comment, citing privacy concerns for the people they serve. The Colorado Rapid Response Network could not be reached for comment.

Last Saturday, more than 1,000 protesters gathered in Longmont as part of nationwide demonstrations to denounce the recent actions of the Trump administration, including its focus on deporting undocumented immigrants.

London Lyle contributed to this report.