You're listening to the Global News Podcasts from the BBC World Service.

Hello, I'm Oliver Conway. This edition is published in the early hours of Tuesday, the 29th of April.

Power is back on in parts of Spain and Portugal, but it's still not clear what caused a huge blackout.

Russia's president announces a three-day ceasefire in Ukraine. The White House says it's not

enough. And the head of Israel's internal security agency agrees to resign after a long row with

the prime minister. Also in this podcast, what we've seen is a remarkable degree of unity

among Canadians, solidarity and resolve to stand up to the threats of Donald Trump.

Canada votes in a general election after a campaign upended by the US president.

After nearly 12 hours of disruption, the Spanish government says half of the nation's electricity supply has been restored,

while Portugal's grid operator says 85 of its 89 substations are back on stream.

The power cuts across the two nations knocked out mobile phone and transport networks

and left people trapped on trains and in lifts.

Some hospitals cancelled non-critical operations.

This was the scene in Madrid.

The emergency department, the intensive care unit, those are working.

But the normal clinics have no electricity.

So there's nothing. We have to go back home.

I'll just have to walk.

Perhaps it'll take me an hour and a half or something like that.

But what can I do? I'll just walk.

Spain declared a state of emergency,

but late on Monday, the Prime Minister, Pedro Sanchez,

...