Satellite images taken on Thursday show damage to fuel storage areas and airport infrastructure in the Ukranian city of Chuhuiv.
Images from space tech company Maxar Technologies show a dark plume of smoke rising from the airfield in Chuhuiv, near Kharkiv in the east as well as a lighter plume, possibly from a nearby building.
Where are Russians attacking?
Ukrainian forces are battling Russian invaders on three of its borders after Moscow yesterday unleashed the biggest attack on a European state since World War II. Tens of thousands of people have fled their homes.
Soon after Russian President Vladimir Putin declared war in a pre-dawn TV appearance, explosions began to be heard in Ukraine's capital city, Kyiv, Kharkiv in the east, and Odessa in the south.
This video shows the blast sites in Kyiv and Kharkiv:
And this video shows tanks and military vehicles rolling across the Ukraine-Crimea border in the south:
The Russian Defence Ministry said it has destroyed 83 Ukrainian military facilities.
In a video address, Ukraine's President Volodymyr Zelenskyy said 137 people have been killed across Ukraine, including soldiers and civilians.
Meanwhile, there is more Russian build-up on the border
New images show more Russian military activity in Belarus, which neighbours Ukraine but allies itself with Russia.
These satellite images show military forces now in Brest, an area in south-west Belarus.
Brest sits near the border with Poland where — as a NATO-backed country — nearly 5,000 US troops have been stationed and where refugees from Ukraine have begun to arrive by road and rail.
Troops have been pictured at several locations in Russia.
On Thursday, fresh images captured a new field hospital established within the past 24 hours near Krasnaya Yaruga in Belgorod, Russia, about 16 kilometres from the Ukrainian border.
Other satellite images recorded over the past two months have shown troops, housing, military equipment, helicopters, jets, armoured vehicles and long-range missile defence systems accumulating at sites dotted around Ukraine's border.
Ukrainian forces are now bracing for more attacks after the Russian barrage of land and sea-based missiles.
Already, Ukraine officials said they had lost control of the decommissioned Chernobyl nuclear power plant, the scene of the world's worst nuclear disaster.
ABC/wires
