MARTINEZ — Five people have been charged with conspiracy in an alleged East Contra Costa drug ring said to involve the transport of more than 100 pounds of methamphetamine across the state.

Charging documents alleged the group made meth sales totaling hundreds of thousands of dollars, and that drugs were transported between Los Angeles County and Antioch, Pittsburg and Walnut Creek. The charges, filed March 12 by Contra Costa prosecutors, cover a span of time in 2014.

Defendants Israel Zuniga, 30, Luis Reza, 31, David Stopani, 28, Benjamin Zuniga-Mora, 27, and George Placensia, 23, were all charged with conspiracy to transport meth for sale, and various other drug possession charges. They’ve pleaded not guilty and a preliminary hearing has been set for March 29, records show.

According to prosecutors, the group used various methods of subterfuge, including taking multi-pound shipments of meth hidden in large, labeled food cans to a place on the 2200 block of Verne Roberts Circle in Antioch. They allegedly transported meth from Long Beach and Los Angeles using cars with hidden compartments built into them.

In a June 2014 incident, an uncharged co-conspirator allegedly tried to sneak six pounds of meth into California from Mexico, and was arrested at the San Ysirdo crossing.