No agreement at Merkel, Putin meeting

Russian President Vladimir Putin and German Chancellor Angela Merkel have met outside Berlin for talks ranging from the conflicts in Ukraine and Syria, to Iran and a gas pipeline project that has drawn US ire.

Standing beside Putin on Saturday, Merkel said both countries, but especially Russia as a permanent member of the UN Security Council, had a responsibility to tackle these problems.

She said she planned to raise human rights issues with Putin, and discuss bilateral relations, strained since Russia's annexation of the Crimea region of Ukraine in 2014.

"I am of the opinion that controversial issues can only be addressed in dialogue and through dialogue," she said.

Both leaders raised concerns about Syria and the plight of the many refugees created by the seven-year-old war there.

Merkel said it was important to avert a humanitarian crisis in Idlib, Syria and the surrounding region, and said she and Putin had already discussed the issue of constitutional reforms and possible elections when they last met in Sochi in May.

Putin told reporters that everything must be done to help Syrian refugees to return to their country and that Syria needed assistance to rebuild. The two leaders took no questions.

On Ukraine, Merkel said she hoped there would be fresh efforts could be undertaken at the beginning of the new school year to disentangle Ukrainian military forces and separatists on the front lines in the Donbass region.

On the planned Nord Stream 2 pipeline to carry Russian gas under the Baltic to Germany, Merkel said Ukraine should continue to have a role in gas transit to Europe, and welcomed the start of discussions among the European Union, Ukraine and Russia on that issue.

Putin told reporters that such a move had to make sense from a business perspective.

The US is pressing Germany to halt work on the pipeline, arguing that it will increase Germany's dependence on Russia for energy.

Ukraine fears the pipeline will allow Russia to cut it off from the gas transit business, while Germany's eastern European neighbours, nervous of Russian encroachment, have also raised concerns about the project.

Putin arrived in Germany on Saturday evening after a stop at an Austrian vineyard to attend Foreign Minister Karin Kneissl's wedding to entrepreneur Wolfgang Meilinger.

"We want to create new momentum in the Minsk (peace) process," German Foreign Minister Heiko Maas said in an interview to be published by Die Welt am Sonntag on Sunday.

Sanctions relief for Russia would only be negotiated if the Minsk accord was implemented, he added.