PECOS, Texas (AP) — Authorities say a former West Texas county judge faces federal bribery and income tax-related charges in a public corruption investigation linked to an indicted state senator.

Prosecutors on Thursday announced charges against ex-Reeves County Judge Jimmy Galindo.

Federal indictments returned Tuesday in San Antonio accuse Sen. Carlos Uresti of engaging in a Ponzi scheme to market hydraulic fracturing sand for oil production. Uresti is charged with multiple conspiracy and fraud-related counts.

Prosecutors say Uresti is also charged with aiding a bribery scheme to help secure...