BERLIN: Outgoing German chancellor Angela Merkel made an implicit call on politicians to overcome their differences on Sunday, as talks between parties to choose her successor got under way following last week's close election.

The centre-left Social Democrats (SPD) and their candidate Olaf Scholz narrowly won last Sunday's vote on 25.7 percent, with Merkel's conservative CDU-CSU alliance plunging to an all-time low of 24.1 percent as she prepares to leave the stage after 16 years in power.

The result leaves the SPD in pole position to form a government, but conservative leader Armin Laschet has also vowed to begin coalition talks in a last-ditch effort to keep the ailing CDU-CSU in power. Speaking in front of party leaders at celebrations in Halle to mark German reunification in 1990, Merkel said the country once again had the opportunity to "shape" its next chapter. "We can argue over exactly how in the future, but we know that the answer is in our hands, that we have to listen and speak with each other, that we have differences, but above all things in common," Merkel said, in clear reference to negotiations at hand.