SAN RAMON (CBS SF) – Nearly 700 marijuana plants were seized and two people were arrested Wednesday morning when police served search warrants at homes identified as grow operations in San Ramon and Dublin, police said.

At 7:15 a.m., San Ramon police served simultaneous search warrants at a home in the 3100 block of Wrangler Road in San Ramon and another home in the 4700 block of Travertino Street in Dublin.

READ MORE: UPDATE: Wind-Whipped Big Sur Wildfire Grows To 1,500 Acres, Blaze Erupts Near Geysers Peak In Sonoma

The execution of the search warrants, which police said followed a lengthy investigation, reportedly led to the discovery of sophisticated pot grow operations with just under 700 marijuana plants.

In the Dublin home, two suspects were arrested, police said.  Dublin police assisted in the arrest of Jing Xue Huang, 41, a male resident of Union City and Chu Dan Zhang, 25, a female resident of San Leandro.

At both residences, PG&E power sources were manipulated in an effort to avoid detection and payment for excessive power usage, police said.

READ MORE: High Winds Topple Trees; Leave Path Of Destruction In San Jose Neighborhood

Based on information obtained during the search of the homes, a follow-up search warrant was executed at 11:10 a.m. at a residence in the 6000 block of Old Quarry Loop in Oakland, police said.

According to police, evidence in that home connected the arrested suspects to the cultivation locations.

Police said the suspects were arrested on suspicion of marijuana cultivation and conspiracy and booked into the Martinez Detention Facility.

MORE NEWS: Pipeline Of Illegal Weapons Shutdown; Four Arrested In San Mateo, Alameda County Raids

© Copyright 2015 by CBS San Francisco and Bay City News Service. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.