We're explaining how we vet, how we make sure the videos you're seeing from Ukraine are real.
Often in times of breaking news, especially if it takes place in a populated area, there's a flood of information posted online.
Some of it like this footage of damage in a Ukrainian city is real.
U.S. officials estimate that Russia has lost roughly three to five percent of its military equipment in the war while the Ukrainian military has lost roughly 10 percent.
Because Russian forces are so much larger and more powerful, officials expect they'll overwhelm Ukraine in the days to come.
But conditions for both sides are constantly changing and information is constantly evolving.
The video you see here got more than 20 million views on TikTok with the top comment claiming the soldier was recording an invasion.
But that's wrong. The video is from an Instagram post in 2015.
This clip was recently shared on a Ukrainian government Twitter page as if it were real but the "Reuters" news agency said it's actually from a video game called digital combat simulator.
One thing I always tell viewers to do especially if they're seeing news on social media is to check their sources.
Did it come from a reputable news site or a news network you've heard of?
If so, chances are it's been verified.
If not, it might be real, it might be fake news.
How exactly do networks like cnn go about verifying the videos we show?
Social media footage has played a key role in our coverage of Ukraine making us able to identify military movements and also possible attacks.
But it's also really important that we understand the footage is real and accurate and current.
And so, one of the ways we've been doing this is by geo-locating that footage, and here is an example of how our investigative team has been doing that.
It was an alarming scene.
Russian helicopters flying suspiciously low over an area just a few kilometers outside of Ukraine's capital Kyiv, with large dark plumes of smoke rising.
And at the time, this video first started circulating on social media February 24th, it was not yet confirmed the Russians were anywhere near Kyiv.
So our investigative team began looking to verify it.
So, the most important thing is to establish that this footage is recent.
We used reverse image search engines to check the video had not been circulating before February 24th. It had not.
With that confirmed, we needed to establish the location.
Social media post mentioned Gostomel airport 25 kilometers outside of Kiev, so we started there.
Using Google Earth and Yandex Maps, a Russian search engine equivalent, we zoomed in on the airport and began looking for possible locations.
What we then wanted to do was to geolocate it.
And to geolocate it, we did what's called a panorama.
So we created various screen graphs from the footage that looked significant and we pulled up various different shots from the footage that showed us key identifiable structures.
The main most notable one was this yellow building here and there's a small rooftop structure as well.
You can also tell that there are some white houses and a grey structure here to the right.
Using these screen grabs, we then went back to our Google Earth to find any situation any location near the airport that matched that description and luckily, we found this.
Here's a yellow structure, and there's multiple white houses and there's also a grey structure nearby as well.
And because of that arrangement, because of the way they're situated, that had to be the location near the airport where this footage was filmed.
So we know the date and we also know the location of that footage.
Now with that verified, we were able to put that footage to use.