DETROIT—A 24-year-old Windsor, Ont., man accused of smuggling marijuana into the U.S. by scuba diving has been arraigned in a Marine City, Mich., court.

Jesse James Thomas Zunti is charged with one count of controlled substance, deliver/manufacture marijuana.

Zunti was arrested after a person was spotted in full scuba gear swimming across the St. Clair River from Canada to Marine City early Monday morning.

U.S. border patrol agents met the diver as he was getting out of the river in the Marine City area.

The agents then found a watertight pipe containing about 3.6 kilograms of marijuana tied to a sea wall ladder.

Zunti remains in custody with bail set at $100,000.