Turkey and Kurds in bid to revive peace talks

Prime minister hails Ocalan’s call to lay down arms

Leaders condemn murder of Boris Nemtsov

But rival conspiracy theories pitch Kremlin against the west

Mourners pay respect to murdered Nemtsov

Protest on Sunday to become march to mourn Russian opposition leader

Killing leaves Putin critics in despair

Plans for large street protest in disarray after Nemtsov death

Slideshow: Russian reformer lies murdered

Boris Nemtsov, one of the most senior leaders of Russia’s political opposition, has beenshot dead in central Moscow

Russian opposition leader Nemtsov shot dead

Putin critic reported hit four times in central Moscow

Reformer who challenged Putin’s grip

Estonia party linked to Putin heads polls

Edgar Savisaar’s centrist party has slim lead before Sunday vote

Joe Cummings illustration

Antonello Fava, Italian coastguard

The man who has saved hundreds of migrants from the sea, write Rachel Sanderson and Giulia Segreti

Brussels city plans to lift ban on Uber

Taxi app makes headway with regulators in Belgian capital

Spain holds suspected pro-Russia fighters

Men posted social media images in paramilitary uniforms

Spain’s Podemos starts to talk business

Talks are sign that the anti-austerity movement is too big to ignore

Syriza and Europe must be patient

Both can overcome mutual suspicion to work towards a fuller deal

Bundestag backs Greek bailout extension

Hardline protesters in Athens demonstrate against Syriza agreement with lenders

MPs dismiss Osborne’s Brussels bill claim

Statement that surcharge had been halved ‘not supported by facts’

Businessman arrested in art market probe

Bouvier detained in Monaco on suspicion of manipulating prices

Lagarde shows tough love to Greece

Painful experience seen to have damaged institution’s credibility

Russia: Left out in the cold

Shrinking economy should boost opposition, but truth is different

British exit from EU given 1 in 6 chance

Think-tank’s departure calculation coincides with warning from manufacturers to politicians

Google shapes up for journey to adulthood

Overdue reorganisation should help it assuage European concerns

Negative yields Q&A: what is the rationale?

Probability that yields will fall even further below zero

Finnish treasure map to lure tourists

Design plan to revive remote Lapland hamlets

Ukraine’s economy presents stern test

Maidan euphoria has given way to worries about food and heating

EasyJet chief urges single skies rethink

McCall asks for reassurances on EU jobs

There are positives to negative yields

Returns can be made as large scale ECB buying pushes up prices