More than 4,000 pounds of illegal drugs, including counterfeit Xanax, bath salts, and methamphetamine, were seized this week from a Garden Grove home, a FBI spokeswoman said.

As part of an ongoing investigation into drug distribution, federal authorities served a search warrant for the home on Tuesday, March 28, FBI spokeswoman Laura Eimiller said.

The seized drugs included ingredients that later would have been prepared as well as pills that were ready to be delivered, she said.

“We sent in teams from multiple agencies who have expertise in drug labs, and they said this was one of the biggest drug labs they’d ever seen,” Eimiller said.

No one was in custody yet as a result of the search warrant, Eimiller said, with the investigation ongoing. The FBI did not disclose the address of the home.