Marcus Walker, European economics editor, Wall Street Journal

tweets, external: Who the Greeks ostracized today: Samaras, Venizelos, Papandreou, Merkel, Schaeuble, troika. But some will be back.

Outgoing Greek Prime Minister Antonis Samaras accepting defeat earlier this evening.

Image source, Reuters

Asteris Masouras

tweets, external: Cool version of "Rock the Casbah" after Tsipras' speech. Music selections triumphant but cool, no Bella Ciao or punk anthems here.

Chris Morris, BBC Europe correspondent

I wonder if he yet realises what he's done? Pretty historic stuff

Alex Andreou

tweets, external: #Tsipras is spot on. EU will only return to prosperity if it acts as a positive partnership of equals. Not toddlers at a playground.

Chris Morris, BBC Europe correspondent

tweets:, external Tsipras wants to assure everyone that he will negotiate. Question is - what will others be prepared to offer him?

Crowd listening to Tsipras - photo by BBC's Piers Scholfield.

Tsipras: "You gave this struggle with passion, you gave hope to our people, you defeated fear and you brought a smile to every Greek man and woman. We will struggle with the same passion. Let us raise the sun over Greece. Let us raise the sun of democracy and dignity."

Tsipras: "Our victory is of all the peoples of Europe who are struggling. I would like to assure you the new Greek government will be ready to co-operate and negotiate with our friends, with a just and useful solution so that Greece will return Europe to development and social stability and values like democracy and solidarity.

"In this sincere dialogue, Greece will come with its own proposals, its own national plan of reforms and radical changes with a four-year plan, without shortages, without unrealistic proposals about our debt.

"The new Greek government will prove the Cassandras wrong. No mutual conflict but no continuation of our submission in front of us. We have a great opportunity for a new beginning a new Europe."

Tsipras speaking now - photo by BBC's Piers Scholfield.

Asteris Masouras, journalist

tweets, external: #Tsipras victory speech so far mostly unimpressive, phrases familiar from dozens of speeches in past. Let's hope practice won't be.

Tsipras: "We shall fight all together in order to rebuild our country on new foundations of justice. Because today, friends, citizens of Athens, I address every Greek man and woman. There are no victors or vanquished. Today we defeated the oligarchy. If someone won today, it is Greece, in order to create a new future with dignity."

Tsipras: "Today is a festival. Today we start with hard work... The troika [of international creditors] is over for Greece."

Eyaggelos Lazaridis in Greece emails: I live in Greece I am 41 years old, married with two children. I didn't vote Syriza. I don't believe what they say. In my opinion the next three months will be very difficult. God help us.

Tsipras: "Today the Greek people wrote history. Hope wrote history. The Greek people gave a powerful mandate. Greece is changing the page. Greece leaves behind the poverty of catastrophe, leaves behind five years of suffering."

Syriza leader Alexis Tsipras is taking the stage now in Athens, waving to the crowds under their multi-coloured banners.

The Independent Greeks, a centre-right anti-bailout party led by Panos Kammenos (pictured below, earlier this week), are projected to enter parliament with 4.7% of the vote. The party shares little ideological ground with Syriza but some analysts say its anti-austerity orientation could lead to a deal.

Image source, AP

More than half the votes have been counted. Anti-austerity Syriza has polled 35,89%, conservative New Democracy 28.32%, far-right Golden Dawn 6.37%, centrist The River 5.85%, communist 5.42%, socialist Pasok 4.8% and centre-right Independent Greeks 4.68%.

Omaira Gill, Athens-based journalist

tweets:, external Here in Athens it feels like we're at the epicentre of an earthquake. Either the landscape will shift or everything will tumble

Macropolis analysis website

tweets, external: Independent Greeks leader Panos Kammenos makes no mention of coalition in his speech but suggests he's open to cooperation