Hello and welcome to NewsHour live from the BBC World Service in London.
I'm Rebecca Kezby.
Is Yemen on the brink of a new escalation in its 12-year civil war,
and could the country divide into two separate states?
Today, a row between the United Arab Emirates and Saudi Arabia has erupted.
The two countries are former allies in the military campaign against the Iran-backed Houthi movement in the north of Yemen.
But differences between them have been increasing, and not just in Yemen but across the region.
Each supports rival factions in the south of Yemen.
Saudi Arabia supports the internationally recognised government that was largely ousted in 2014.
The UAE backs the Southern Transitional Council, or STC,
which has nominally been part of the government,
but which argues for separate southern state of Yemen.
In recent weeks,
tensions and violence has broken out between the internationally recognised government and the STC.
Then on Monday night, Saudi Arabia conducts air strikes on the southern Yemeni port of Makala,
saying it was targeting ships taking UAE weapons and munitions to STC separatist fighters.
This man, Abdullah, witnessed the bombing.
What happened today is unacceptable to God or his messenger.
At around 3.30 or 4 in the morning, they bombed the port.
Our windows were shattered, the doors were broken.