Update: Things have deteriorated with protesters throwing petrol bombs at police.

GREEK PROTESTERS THROW PETROL BOMBS AT POLICE IN ANTI-AUSTERITY PROTEST CLOSE TO PARLIAMENT, POLICE RESPOND WITH TEAR GAS

(Live feed)

Disturbios en Syntagma ahora. Molotovs y petardos contra la policía. Acabo de grabar esto pic.twitter.com/pGKYlbfAcN — HI??? (@Hibai_) July 15, 2015

Ahead of today's perhaps most critical vote in recent Greek history, one which may cede the nation's sovereignty and control of its banks to European bureaucrats and the ECB, demonstrators are again starting to congregate on Syntagma square where anti-austerity protesters are commingling with civil servants and pharmacists who previously called a 24 hour strike.

While the Athens riot police is quietly preparing for the worst:

For now the situation is peaceful, although once the public understands that the government has passed the "deal" the sense of calm may promptly disappear.