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Hello and welcome to NewsHour from the BBC World Service.

We're coming to you live from our studio in the heart of London.

I'm Liz Doucette.

And as we begin our program, there is a developing story and we start in the

international waters off the coast of Venezuela. U.S. forces are said to be in active pursuit

of another oil tanker. They've already intercepted two vessels in the past two weeks.

Media are now quoting unnamed US officials

saying the pursuit involves a sanction vessel, which is part, they say, of Venezuela's illegal

evasion of sanctions. It's all part of the U.S.'s major military buildup in the region.

Let's see if we can get the latest details from our correspondent

in Washington, Sean Dilley. Sean, what do we know about this latest oil tanker said to be

being pursued? Very little about the detail, but I think we're now confident to say that we

are convinced that it is being pursued actively. That's reported by our US partner, CBS News,

who have spoken to officials. Now, what we don't know, Lee's, of course, is what does an active

pursuit look like? There have been some very dramatic videos out there, including the one from

yesterday's pre-dawn raid, where there are helicopters and a very, very

strong underpinning of military forces backing up the Coast Guard. We don't know at what stage

this is at. But at this point, we are confident to say that the US Coast Guard, according to

official sources speaking to our US partner, CBS News, are pursuing one.

So then this is the second ship the US has had in its sights this weekend, the third

in total.

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