Federal and local law enforcement launched a significant early-morning operation Saturday in northeast Las Vegas as part of an ongoing investigation into suspicious biological activity at a residential property.

Shortly before 6 a.m., teams from the Federal Bureau of Investigation and the Las Vegas Metropolitan Police Department’s SWAT unit served a search warrant at a house on Sugar Springs Drive near North Hollywood Boulevard and East Washington Avenue, authorities confirmed. 

The action drew a large response from multiple agencies and is expected to continue for some time.

Clark County Sheriff Kevin McMahill told reporters the investigation centers on evidence uncovered at the home that could point to a possible biological laboratory. 

McMahill said investigators discovered “evidence of possible biological material, including refrigerators with vials containing unknown liquids."

He assured the public that, at this stage, there is no indication of a threat to the community.

”There’s a lot of questions that we have that need to be answered,” McMahill said. “There’s a lot of work ahead of us that needs to be done.”