The Huron County drug task force recently raided a League Street residence.
"A number of drug-related items were seized," Huron County Sheriff's Detective Sgt. Josh Querin said.
Those items were sent to the crime lab for testing.
"No arrests have been made," Querin said, adding five people were at the location.
"These were all felony-related drug items," he added.
The raid took place at 7:10 a.m.
Sheriff Dane Howard said Norwalk police sent an officer to a debriefing meeting before the raid.
"We want to do everything we can to strengthen the relationship between the two offices," the sheriff said.
Howard said HCSO staff will send a teletype message, followed by a telephone call to any law-enforcement agency where deputies might be entering their jurisdiction during a raid.
This is an improved version of deconfliction, the sheriff said.
Deconfliction is a process to reduce the risk of collision between two agencies.