Russian forces have moved to the outskirts of Ukraine's capital as attacks continue for a second day.
The invasion began on Thursday morning with a series of missile strikes, many on key government and military targets.
These were quickly followed by a ground assault from the north, east and south in an attack that could rewrite the global post-Cold War security order.
READ MORE: Everything we know from first day of Russian Ukraine war
Ukrainian President Volodymyr Zelensky vowed that his military will keep fighting back and he ordered a full mobilisation. He said 137 people - servicemen and civilians - have been killed and hundreds more wounded since the invasion began.
Fearing a Russian attack, many of the capital's residents took shelter deep underground in metro stations. People brought sleeping bags and blankets, dogs and crossword puzzles as they sought safety in the makeshift bomb shelters.
In the early hours of the morning, several explosions were heard in different parts of the city. Air raid sirens could also be heard.
Kyiv mayor Vitaly Klitschko had called on the city's three million people to stay indoors unless they worked in critical sectors and said everyone should prepare go-bags with necessities such as medicine and documents.
On Friday morning, Mr Klitschko said at least three people were injured when a rocket hit a multi-storey apartment building, starting a fire.
The Ukrainian military on Friday morning reported significant fighting in the area of Ivankiv, about 40 miles north-west of Kyiv, as Russian forces apparently tried to advance on the capital from the north. It said one bridge across a small river had been destroyed.
Mr Zelensky said he has information that he is the number one target for the invading Russians but said he planned to remain in Kyiv.
What can I do to help Ukraine from the UK?
Ukrainians have collated a list of local organisations you can donate to through secure methods like PayPal.
These include United Help Ukraine, Sunflower of Peace and Voices of Children.
The British Red Cross has also launched an emergency crisis appeal to help Ukraine.
They said: "It's a rapidly evolving crisis, and your donation could help someone affected get food, medicines and basic medical supplies, shelter and water.
"We’ll update this page throughout the coming hours and days with more information from our team on what’s happening, and how your support will help people."
Aside from donating money, you can also write to your local MP either by email or post.
Correspondence can put pressure on the government to make further changes.
Instructions can be found here on parliament.uk.
It's also important to make sure you're only commenting and posting information from trusted news sources.
This helps curb the spread of disinformation.
You can find out more about this at the Ukraine Crisis Media Center.
Receive newsletters with the latest news, sport and what's on updates from the Liverpool ECHO by signing up here
