Multimedia

PHOTO GALLERY: Russia intervenes in Ukraine's Crimea




Russian Army trucks drive on the road from Sevastopol to Simferopol in the Crimea region March 1, 2014 (Photo: Reuters)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014 (Photo: AP)

Armed men stand guard at the entrance to Belbek Airport in the Crimea region March 1, 2014 (Photo: Reuters)

A Russian military vessel is anchored at a navy base in the Ukrainian Black Sea port of Sevastopol, Crimea, February 27, 2014 (Photo: Reuters)

A couple stands next to armed servicemen outside a Ukrainian border guard post in the Crimean town of Balaclava March 1, 2014 (Photo: Reuters)

Pro-Russian men hold Russian flags in front of armed servicemen near Russian army vehicles outside a Ukrainian border guard post in the Crimean town of Balaclava March 1, 2014 (Photo: Reuters)

Armed servicemen wait near Russian military vehicles outside a Ukrainian border guard post in the Crimean town of Balaclava March 1, 2014 (Photo: Reuters)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014 (Photo: AP)

Orthodox monks pray next to armed servicemen near Russian army vehicles outside a Ukrainian border guard post in the Crimean town of Balaclava March 1, 2014 (Photo: Reuters)

Armed men stand guard at the entrance to Belbek Airport in the Crimea region March 1, 2014 (Photo: Reuters)

Russian troops entered Ukraine's Crimea region on Saturday following a parliamentary green light for President Vladimir Putin to interfere militarily.

Officials in Kiev had earlier said Russia had already dispatched 30 armoured personnel carriers and 6,000 additional troops into Crimea to help pro-Kremlin militia gain broader independence from the new pro-EU leaders in Kiev.

Obama called on Putin to pull his troops back to Russian barracks in the Crimean peninsula.