A U.S. ex­tra­di­tion process against Guyana’s main op­po­si­tion leader and his fa­ther—want­ed on gold smug­gling and mon­ey laun­der­ing charges—can re­sume, af­ter they had legal­ly chal­lenged the re­quest, a Caribbean re­gion­al court ruled on Wednes­day.

The Caribbean Court of Jus­tice ruled against Azrud­din Mo­hamed and his fa­ther Nazar Mo­hamed who were in­dict­ed in Flori­da last year in a case that has un­der­scored per­sis­tent gov­ern­ment cor­rup­tion in the oil-rich South Amer­i­can na­tion.

Azrud­din Mo­hamed, who leads the sec­ond-largest par­ty in Guyana’s Par­lia­ment, was elect­ed the coun­try’s op­po­si­tion leader in Jan­u­ary, just six months af­ter found­ing the We In­vest in Na­tion­hood Par­ty.