The vessel was flying a false flag and under a judicial seizure order, according to US officials cited by US media.

The United States is pursuing an oil tanker in international waters near Venezuela, US media reported, in what would be the second such operation in two days and the third in less than two weeks.

“The United States Guard is in active pursuit of a sanctioned dark fleet vessel that is part of Venezuela’s illegal sanctions evasion,” a US official told the Reuters news agency on Sunday.

“It is flying a false flag and under a judicial seizure order.”

Another official told the agency that the tanker was under sanctions, but added that it had not been boarded so far and that interceptions can take different forms – including sailing or flying close to vessels of concern.

The officials, who were speaking on condition of anonymity, did not give a specific location for the operation or name the vessel being pursued.

The pursuit of the tanker was also reported by The Associated Press news agency, which cited an official briefed on the operation separately.

The official, who also spoke on condition of anonymity, said Sunday’s pursuit involved “a sanctioned dark fleet vessel that is part of Venezuela’s illegal sanctions evasion.”

The official also said that the vessel was flying a false flag and under a judicial seizure order.

Two tankers seized

The pursuit comes after the US seized an oil tanker off Venezuela on Saturday as part of a “blockade” ordered by US President Donald Trump.

US Homeland Security Secretary Kristi Noem said on Saturday that the coastguard apprehended the vessel with support from the Pentagon.

“The United States will continue to pursue the illicit movement of sanctioned oil that is used to fund narco terrorism in the region,” she wrote.

“We will find you, and we will stop you,” she added.

The operation marked the second time in recent weeks that the US has seized a tanker near Venezuela, and it comes amid a large US military build-up in the region.

Trump, whose administration has continued to ramp up pressure on Venezuelan President Nicolas Maduro, ordered on Tuesday a “total and complete blockade” of all sanctioned oil tankers entering and leaving the South American country.

Trump’s pressure campaign on Maduro has also included a ramped-up military presence in the region and more than two dozen military strikes on alleged drug trafficking vessels in the Pacific Ocean and Caribbean Sea near the South American nation. At least 100 people have been killed in the attacks.

The two oil tankers that were seized were operating on the black market and providing oil to countries under sanctions, Kevin Hassett, director of the White House’s National Economic Council, said in a TV interview on Sunday.