Parts of Athens are without power after a 5.1 magnitude earthquake shook the Greek capital.
The quake lasted for around 15 seconds and caused two buildings to collapse.
There have been reports of casualties or serious injuries.
Several aftershocks have already been reported and experts warn that there could still be more.

Gunfire, injuries reported at Sydney's Bondi beach, two people in custody
Brown University shooting leaves 2 dead, 9 injured as police search for killer
India tightens pollution curbs as Delhi's air quality worsens
'Peace is not far away' says Erdogan after Putin meeting
Belarus frees Nobel winner, protest figures as US lifts more sanctions
