Funeral of Alexei Navalny takes place in Moscow

Thousands of his supporters lined the streets of the Russian capital for his funeral service and burial. We hear from a mourner.

Also on the programme: we get rare access to Iran, where parliamentary elections are taking place. And with a new species discovered off the British coastline, we hear about the wonderful world of sea slugs.

(Picture: A mourner at the funeral of the Russian opposition leader Alexei Navalny. Credit: Reuters)