Hello and welcome to NewsHour live from the BBC World Service.

I'm Rebecca Kesbby.

Coming up on the programme today, President Trump has arrived in Scotland,

will be talking golf, whiskey, salmon and obviously politics

and how the global popularity of Japanese matcha tea has left producers

struggling to meet demand. First, though, let's look at the latest on the cross-border

clashes between Cambodia and Thailand that have erupted this week. Tens of thousands of

civilians have already been displaced by fighting an artillery fire. At least 30 people have been killed.

The border is over 800 kilometres long, much of it in densely forested areas or rural farming land,

but parts of the region have been contested for centuries with religious sites and temples,

often flashpoints.

It seems political tensions were behind this latest sudden military escalation,

as our South Asia correspondent Jonathan Head has been telling me,

he's close to the border on the Thai side at the moment,

and I asked him to give us the latest on the fighting,

because we're hearing it spread to new areas.

Well, it has spread to one other part of the border, quite a long way from where I am, down

in the far south. At that point, the border between Thailand and Cambodia narrows and gets

very close to the coast and said the Thai Navy was deployed. Now, we're only getting the Thai

military's account of this, but they say they deployed

Navy forces backed by Navy ships to push back Cambodian forces.

They say had reinforced that area and were threatening.

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