SAN DIEGO -- Mexican federal authorities have discovered several airstrips near Tijuana, Mexico, that are suspected to have been used by local drug cartels, 10News reported.

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10News Is Given An Exclusive Tour

10News was invited to an exclusive tour of nine different airstrips Thursday.

Mexican Federal Agent Raul Tovar told 10News that agents had been doing flyovers of the Tijuana region recently, taking pictures of the vast landscape that runs south and east of the city.

Suspicious areas were inspected by foot, where agents found fresh plane tire tracks on the dirt, 10News reported. Authorities also found evidence that highway road reflectors were being used to light the runways at night.

Tovar said he believes the cargo delivered by the plane would have gone to the recently discovered and destroyed drug tunnel near Boulevard.

Tovar said that officials also plan to destroy the airstrips. Agents plan to dig trenches perpendicular to the runway, making landing a plane virtually impossible.

No arrests have been made in connection with the discoveries.