The latest five minute news bulletin from BBC World Service.

How a new generation of batteries is transforming the world's electricity systems

As voting ends in the first round of Brazil’s presidential election, we hear from supporters of the two main candidates, Flavio Bolsonaro and Luiz Inacio Lula da Silva. Also in the programme: a resident of the Tigrayan regional capital Mekelle in northern Ethiopia describes the city now that pro-government forces have taken control; after the FlyDubai near-disaster, will pilots now face further vetting? And we hear from the Facebook whistleblower who inspired a film.