Nearly a ton of marijuana was found hidden on a 35-foot yacht sailing into San Diego’s Mission Bay, U.S. officials said Tuesday.

U.S. Customs and Border Protection (CBP) marine interdiction agents stopped the yacht Friday around 2 a.m. near the entrance to the bay located directly north of downtown.

The boat and the two people on board, a 33-year-old woman and a 51-year-old man, were returning from Mexico.

CBP agents say they were on routine patrol when they moved the yacht to a nearby marine and called in a drug-sniffing dog from the U.S. Border Patrol.

The dog alerted, officials said. After that, agents say they found 91 packages hidden in various secret compartments, including under false decks.

The bundles of marijuana were wrapped to resemble wood paneling.

In total, the packages contained 1,194 pounds of marijuana, with an estimated street value of about $715,800, officials said in a news release.

The two U.S. citizens were taken into custody. The yacht and the drugs were seized.

