Out front next, the breaking news, two nuclear nations on the brink of an all-out war tonight

after India launched a surprise deadly attack inside Pakistan.

Now Pakistan vowing to retaliate CNN tonight live on the ground.

And tonight we are coming to you live from Rome.

One of the world's most sacred and secretive rituals, the conclave will begin at the Vatican

behind us in just hours.

We'll show you the top contenders for the next leader of the Catholic Church.

And the doubt dropping, even after Trump promises again that there will be trade deals but

says none are necessary.

Where are they?

Let's go Outfront. And good evening.

Welcome to a special edition of Outfront.

I'm Aaron Burnett. Live from Rome just outside the Vatican, you see behind me tonight,

where the sacred process to select a new pope will begin in a few hours.

We're going to have so much more on that in a moment, but the breaking news right now, two nuclear countries on the cusp of war.

Tonight, a surprise deadly attack inside Pakistan.

We're showing you on the screen.

India claiming responsibility, saying that it attacked nine sites in Pakistan and Pakistan-controlled Kashmir.

Now, Pakistan's top military spokesman, just moments ago warning,

and I quote him, this heinous attack will not go unanswered.

That same spokesman for Pakistan's military also telling CNN

that Pakistan shot down to Indian aircraft.

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