I saw tear gas and Tsipras at Athens' final massive rally for a NO vote in the Greek referendum

ATHENS, Greece - The 'No' campaign against a bailout deal had its last and biggest rally here on Friday night, ahead of the referendum on Sunday which could decide Greece's economic and political future.

The crowd started building early, ahead of Prime Minister Alexis Tsipras' speech.

There was a huge social and age mix in the crowd - though there were dozens of left-wing groups in attendance, it's nothing like a political rally I've seen in the UK since the Iraq War demonstrations.

Tens of thousands of people turned up to Athens' Syntagma Square.

Take a look at how it looked from down on the ground.