Greek police throng the area around the offices of the far-right Golden Dawn party where two of its supporters have been shot dead.
A third was wounded in the drive-by attack on Friday.
It happened on a busy street during the evening rush-hour in the capital, Athens.
The shootings came at a time of growing public anger against Golden Dawn.
Several of its senior members have been arrested over alleged involvement in attacks and criminal activities.
The party is the subject of a government crackdown after the killing of a rapper in September blamed on one of its sympathisers.
But lawmakers across the political spectrum are condemning Friday's attack.
A Greek government spokesman pledged those behind it would be hunted down.
(SOUNDBITE)(Greek) GREEK GOVERNMENT SPOKESMAN SIMOS KEDIKOGLOU SAYING:
"The murderers, whoever they are, will be dealt with unsparingly by our democracy and justice system as well as a united Greek society. Let ev
