Satellite photos give a bird's-eye view of Ukraine crisis

Satellite image provided by Maxar Technologies shows an overview of road construction and new pontoon bridge over the Pripyat River, Belarus. (AP photo)

A satellite image shows a clearing at Pripyat River on the border between Ukraine and Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows an overview of road construction and new pontoon bridge over the Pripyat River, Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows military equipment positioned in convoy at Lake Donuzlav in Crimea. (AP photo)

Satellite image provided by Maxar Technologies shows a military convoy headed westbound at Rechitsa in Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows attack helicopters deployed at Zyabrovka airfield in Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows an area where troops and equipment departed from Zyabrovka airfield in Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows a view of troops and equipment remain in Brestsky training area, Belarus. (AP photo)

Satellite image provided by Maxar Technologies shows the armor and artillery loaded on flatcars and railyard in Yelnya, Russia, about 300 kilometers (186 miles) north of the border with Ukraine. (AP photo)

Satellite image provided by Maxar Technologies shows the closer view of new Su-34 fighter deployment at Primorsko Akhtarsk Airbase, Krasnodar Krai, Russia, south of the border with Ukraine. (AP photo)

Satellite images provided by Maxar Technologies shows tanks on firing range at a training ground in Pogonovo, Russia. (AP photo)

Satellite image provided by Maxar Technologies shows helicopter unit in Belgorod, Russia, east of the border with Ukraine. (AP pboto)

Satellite photo from Planet Labs PBC, Pribytki Air Base in Belarus is seen Saturday. (AP photo)