This is the Global News Podcast from the BBC World Service.

I'm Chris Barrow, and in the early hours of Wednesday,

the 3rd of May, these are our main stories.

The warring parties in Sudan say they'll observe a seven-day

truce from Thursday, close to half a million Sudanese,

have fled their homes since fighting erupted more than two weeks ago.

For the second time in as many days,

a bomb blast has derailed a Russian train close to the Ukrainian border.

Serbia and Kosovo have agreed to cooperate

in locating and identifying hundreds of people

still missing from their conflict towards the turn of the century.

Also in the podcast, the Ukrainian farmer

tackling Russian landmines with a remote-controlled tractor.

And we are taking brain scans of people,

and we are reading out the words that they are either

hearing in a story or words that they're just thinking.

Turning people's thoughts into written text

with the help of artificial intelligence.

We begin in Sudan.

The conflict there is now in its third week,

and it doesn't seem like there's an end in sight

despite a series of ceasefire announcements.

...