Paris attacks: Conflict now top of G20 agenda in Turkey

World leaders have united to condemn the terrorist killings in Paris as they seek to use the G20 summit to discuss stronger measures.

US President Barack Obama arrives in Turkey’s Antalya for the G20 leaders’ summit.

World leaders have united to condemn the terrorist killings in Paris as they seek to use a global summit in Turkey to discuss stronger measures to confront violent extremists while voicing their horror at the attacks.

A “collective response” to terrorism is being sought from the world’s most powerful nations at the G20 summit, where the events in France have moved terrorism and the conflict in Syria to the top of the agenda.

Amid tight security at the Turkish resort of Antalya, leaders including US President Barack Obama and Russian President Vladimir Putin pledged France “all assistance” to fight the terrorist threat.

But there was a splintering of views on how to deal with the humanitarian crisis from the Syrian conflict, with European nations talking of increasing their border controls and refusing to accept refugees.

The main dinner at the Antalya summit has been dedicated to discussing counter-terrorism strategies, with the Paris attacks shaping the talks.

Malcolm Turnbull has joined the host of the summit, Turkish President Recep Tayyip Erdogan, in calling for a common purpose from all G20 members in fighting a global problem illustrated by attacks in Ankara, Beirut and Egypt, as well as Paris.

“This issue of a collective response, of co-operation, of mutual support with a common purpose of combating and defeating terrorism of this kind has to be undertaken and it will be one of the major items on the agenda of this G20,” the Prime Minister told the ABC’s Insiders program from Antalya.

He arrived there after a meeting in Berlin on Friday with German Chancellor Angela Merkel, where the two discussed policies to fight terrorism.

Upon arrival he met Mr Erdogan, who used the meeting to argue that his country needed more help to respond to terrorism and manage the flow of refugees from the war in Syria.

Mr Erdogan has blamed European countries for trying to keep their “doors closed” to refugees when Turkey had more than two million people who had fled the war in Syria.

He is also pushing for a safe zone within Syria while criticising the US for not doing enough to counter Islamic State.

“We have warned them but they’re still following the same trajectory,” Mr Erdogan said of the US, adding in an interview with CNN that the G20 would have to address the problem: “The actual question and the actual deal at the end of the day is to save Syria out of this turmoil.”

European nations are at odds over how to deal with the influx of millions of refugees from Syria in the wake of the Paris attacks.

Ms Merkel is facing rebukes from party colleagues over her decision to accept 800,000 Syrian refugees this year, with Finance Minister Wolfgang Schauble warning of an “avalanche” caused by “careless” actions.

Poland has responded to the Paris attacks by refusing to accept some of the 120,000 refugees that were meant to be divided among EU members to share the load. Only a few hundred of those refugees have actually been sent on to member nations that were meant to take them.