Unearthed: 2 tunnels leading into California from Mexico found

Mexican police have discovered two additional tunnels that officials believed drug traffickers used to sneak from the border city of Tijuana into the United States.

Entrances to the tunnels were spotted in an area of warehouses across from Otay Mesa, officials said. One of them reached to San Diego while the other was unfinished.

Photos and videos provided to Fox News by Attorney General’s Office showed wooden steps leading to the tunnels equipped with rails and trolleys. They were hidden behind fake cinder block and metal doors.

Images provided by the Mexican Attorney General's Office show two tunnels discovered leading from the border city of Tijuana to California

Images provided by the Mexican Attorney General's Office show two tunnels discovered leading from the border city of Tijuana to California (Released by the Mexican Attorney General's Office)

Prosecutors did not say how long the tunnels were or where they ended in San Diego.

The Attorney General’s Office said the notorious Sinaloa cartel apparently used the tunnels to move drugs into the United States.

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The U.S. consulate in Tijuana had reported the tunnels were being reactivated after drug traffickers apparently abandoned them for a while.

Investigators found similar tunnels earlier this year including one running a half-mile from a Tijuana house equipped with a large elevator to a lot in San Diego that was advertised as a wooden pallet business.

The Associated Press contributed to this report.