Stuart Clarkson

And a few days after the US dropped the threat to impose 10% tariffs on eight NATO member countries over Greenland, President Trump has announced he's hiking tariffs on South Korea, despite an agreement made last year.

The BBC's Asia business correspondent, Suranjana Tiwari, is following this in Singapore.

Surinjana Tiwari reporting.

Our producer today was Neil Morrow.

Our editor is Naomi Rainey.

In the UK, I'm Stuart Clarkson with the Marketplace Morning Report from the BBC World Service.

The oil sanctions leaving sailors cut adrift.

Live from the UK, this is the Marketplace Morning Report from the BBC World Service.

I'm Stuart Clarkson.

Good morning.

The US has been clamping down on the Shadow Fleet, ageing merchant ships which are used to evade international sanctions by transporting illicit goods.

Russia is accused of using ships like these to make money by selling sanctioned oil.

The International Transport Workers Federation says the rise in the Shadow Fleet could be fuelling a surge in something called seafarer abandonment, where crew are left stranded without food and pay.

There can be other reasons too, like geopolitical instability or if an operator goes bust.

This happened to 410 ships last year, up by a third, leaving more than 6,200 seafarers stranded.

The BBC's David Waddell has spoken to one sailor still aboard his stranded oil tanker.

We're not identifying the location of the ship or the name of the captain.

David Waddell reporting there.

Let's do the numbers.

India's biggest airline, Indigo, has seen a 75% drop in third quarter profits after one of the country's worst aviation crises.