A monthlong investigation has led to five arrests and the seizure of more than $200,000 in marijuana in Orange County, authorities said.

Anthony Mave, 46, of San Clemente was arrested near Newport Boulevard and 16th Street in Newport Beach on Jan. 6 after he was found in possession of 24 pounds of "high-grade" marijuana, police said.

On the same day, while serving a search warrant, Newport police found a complex marijuana-growing operation inside a Laguna Niguel residence. Detectives seized about 300 marijuana plants, four pounds of cultivated marijuana and cash there, according to Newport Beach police spokeswoman Kathy Lowe.