US officials say Russia asked China for military support and help in evading sanctions.

"It doesn't matter where you live" - fear after a deadly attack on military base close to Polish border.

Zhytomyr, in north-west Ukraine, is facing intense daily attacks. Why is it being bombed so heavily?

The children and their immediate family members arrived on an urgent flight after a plea from Polish officials.

The news comes as Ukraine says Russia is trying to create "pseudo-republics" to break up the country.

The eastern town of Zamosc has welcomed thousands of refugees but locals wonder how long they can cope.

It is hoped tens of thousands of displaced people will benefit from the plan, the government says.

It is the first reported death of a foreign journalist covering the war in Ukraine.

Images from Russia's invasion of Ukraine show a conflict turning deadlier nearly three weeks on.

The president accuses the Russians of "moving to a new stage of terror" as Melitopol residents protest.

Civilians make new attempts to flee besieged cities as Russia warns it may target Western arms convoys.

"We need to give them what they want and help them get to the conflict zone," the Russian leader said.

Experts say a drone that crashed in Zagreb was a modified type dating back to the Soviet era.

Ways to slow the spread of bad information and false posts from the war.

Young volunteers swap their studies for assault rifles as they prepare to defend Kyiv from Russian forces.

Many Russians who can afford it have fled to nearby countries since Russia invaded Ukraine.

Prices are rising in Russia and some goods are harder to buy. Here are ways sanctions are affecting daily life.

Social media channels and private messaging groups are being used to recruit, the BBC has learned.

Why so many Ukrainians are determined to keep on working through the conflict.

The picturesque western city of Lviv is racing to protect is cultural and religious artefacts.

From toys to flowers, refugees fleeing the war in Ukraine are warmly greeted by strangers in Europe.

Residents in the city are seen chanting and waving Ukrainian flags as Russian tanks pass by.

Ukraine's president gives medals to injured troops and the hospital workers caring for them.

Footage shared by the State Emergency Service of Ukraine shows buildings in Chernihiv totally destroyed.

Students Maksym, 19 and Dmytro, 18 volunteered for the Ukrainian army just weeks ago.