Police in Kenya have fired tear gas to break up a protest in the central town of Nanyuki against the construction of an Ebola quarantine centre for US citizens. Small groups of demonstrators, who were waving Kenyan flags, carrying placards and holding a coffin with the word "Ebola" written on the side, were demanding the plan be reversed. Last week, two people died after being shot as police dispersed similar protests. The US plan has sparked public concern about cross-border infection risks