FBI agents served a warrant at a private residence and a longtime business in Clinton Thursday morning.

Agents in unmarked vehicles searched a business on State Highway 525 in Clinton at around 7 a.m. and then a Timberline Road home near Deer Lake at about 9 a.m.

The reason for the searches is not being disclosed. No arrests were made.

Authorities declined to comment on the case, saying it remains under investigation.

An FBI spokeswoman did confirm, however, that the investigation is unrelated to drugs, weapons or violent crime.

A woman who answered the phone number listed for the home’s address declined to comment.

“Just because we serve a search warrant somewhere doesn’t mean it’s the home of a criminal activity,” FBI spokeswoman Ayn Dietrich-Williams said.

The searches left many in Clinton scratching their heads. Terry Cooper of Cooper Auto Sales said news that the FBI was searching the home and business was a complete surprise.

“Everybody is wondering what’s going on,” he said.

The agency received assistance from local law enforcement, including the Island County Sheriff’s Office and the Langley Police Department.

Langley Police Chief Dave Marks would only say that the operation was to serve a warrant.

A woman who lives a few houses away from the Timberline Lane residence said she saw several cars zip down the usually empty road around 9:15 a.m. Noticing the large antennae and dark tint on the vehicles, she walked outside and saw several FBI officers approach the home.

“It wasn’t a SWAT team or anything like that. No, it wasn’t like the movies,” Kim Harding said.

Harding said she saw what appeared to be FBI agents in khakis and the dark blue jackets with “FBI” on the back.

Given the recent mass shooting in San Bernardino, Calif., and major police response, Harding said she was alarmed but not frightened to see multiple law enforcement officers just down the street.

“It’s not unsettling, more of wondering what’s going on in the neighborhood,” she said.

“I stayed right here,” added Harding from her front door.

A few houses up from Harding, Rebekah Roberts said she was home and noticed the cars leave around 2:20 p.m. Seeing her neighbor’s home surrounded by FBI agents was startling, she said, but there was no commotion or shouting that she could tell.

“It’s pretty weird for our neighborhood,” Roberts said. “We’re pretty quiet.”