Kazakhstan’s opposition has demanded the resignation of the head of the upper house of parliament, following the murder of an opposition politician. It comes after an aide to the speaker was reported to have been arrested in connection with the investigation. The opposition media have continued to pressurise Kazakhstan’s political establishment after the killing of Altynbek Sarsenbaiulu 10 days ago. Mr Sarsenbaiulu was shot dead along with his driver and bodyguard. Full Story