May 9 (UPI) -- Britain hit Russia's shadow fleet Friday with what Prime Minister Keir Starmer called the largest ever sanction package. Up to 100 oil tankers that carried more than $24 billion in cargo since the beginning of 2024 were targeted by the sanctions. "Every step we take to increase pressure on Russia and achieve a just and sustainable peace in Ukraine is another step towards security and prosperity in the U.K.," Starmer said in a statement. Starmer said the sanctions targeting the