29/03/2017 Newsround

Morning, everyone, you're live with me, Leah, on CBBC. Coming up.

Today Britain officially says it will leave the European Union.

The super rare tigers caught on film.

And meet the unexpected visitor on a US golf course.

First to some big news for the future of the UK.

Later today, Prime Minister, Theresa May is going to trigger

It's after the UK voted to leave a group of countries

The British people decide our future in Europe.

The decision taken has been reversed by this referendum to leave the EU.

Following the referendum, we face a time of great national change.

I will return to this House before the end of this month to notify

when I have formally triggered Article 50 and begun the process

through which the United Kingdom will leave European Union.

Well, for a country to leave the EU, the prime minister of that

country has to do something called triggering Article 50.

It's just a complicated way of saying the UK's prime minister,

Theresa May, will officially tell the rest of the EU that the UK

She's signed a letter that will be handed over at this building

round about the time you're eating your school dinner.

Politicians have two years to come up with a plan as to how the UK will

leave and how it will carry on working with the EU. Let us find out

a bit more about Article 50. Article 50 is the name

of an agreement between members of a club of countries called

the European Union, or EU, which explains how a country

can leave this group, The Prime Minister, Theresa May,

will activate Article 50 later today, which means the UK

will officially be Well, doing this gives the UK

and other 27 EU countries, two years to come up with a deal

about what sort of relationship the UK will have with

the EU in the future. They need to decide rules

for things, like buying and selling products to each

other and immigration. Once a deal has been made official

and approved, then the UK is out. It's a lot to get through in two

years so the politicians will be If they decide they need

more than two years, then the time limits can be extended

but only if everybody agrees. Don't forget there is loads more

info over at Newsround online, including this explainer

of what all the words people And take a look at these incredible

pictures of a rare group of tigers They were filmed by conservationists

using special camera traps, which are triggered

using motion sensors. There's less then 300 Indo-Chinese

tigers left in the wild in Thailand. And what's really exciting

is that the footage shows the tigers are having cubs for the first time

in 15 years. Next up, a long stretch

of Australia's north-east coast is at dangerous risk of flooding

after a powerful cyclone hit. Cyclone Debbie has caused major

damage, heavy rain and power cuts This is the moment a huge cyclone

battered the north-east With winds of up to 163

mph and pounding rain, people think that Cyclone Debbie

might be the worst to hit So far it has caused

lots of damage to buildings, trees and roads in an area called

Queensland and it's left more In fact, Cyclone Debbie is so strong

it's been labelled a category four storm by weather experts,

that's only one level down Australia's prime minister

has reassured people that there are plans in place

to keep people safe and the authorities have encouraged

around 25,000 people It's very clear that the time

for people to move is now, More than 2,000 emergency workers

are on stand-by ready to help those affected by the cyclone

but the authorities won't know how much damage Cyclone Debbie has

caused until the winds die down. Now you normally see front flips

at gymnastics but... A monster truck driver became

the first in the sport's history to pull off a front flip

at the Monster Jam World finals. Lee O'Donnell, nicknamed

the Mad Scientist, completed it much to the surprise

of the crowd in Las Vegas in the US. Sport, Andy Murray is out of the

Davis Cup team. He has a tear in his elbow and is to rest. No decision

has been made yet as to whether he will return. Kyle Edmund, Dan Evans,

Jamie Murray will head to France. We will keep you up-to-date on the

Davis Cup news. Last up, check out this unexpected

visitor having a stroll This alligator interrupted a golf

tournament in South Carolina by walking across the course

as players watched on. All the players managed to jump

into their buggies and drive off. That's all, Newsround's back

here at 4.20 this afternoon. You're watching CBBC

with Katie and Lauren. We've got Absolute Genius

coming up next for you. Don't forget, this afternoon

we've got a brand-new episode