The Venezuelan navy said it escorted a fourth fuel tanker from Iran through its waters on Thursday, while the United States called the shipments to the gasoline-starved country a distraction from problems facing President Nicolas Maduro.
The oil industries of Iran and Venezuela are both under U.S. sanctions. Iran is providing its fellow OPEC member up to 1.53 million barrels of gasoline and refining components to help ease an acute shortage, the result of the near-complete breakdown in its refining network as well as the sanctions.
Washington has said it is weighing a response to the shipments.