Four leaders of the Zimbabwe Congress of Trade Unions (ZCTU) have been released on bail after a short court appearance on Monday, the labour body reported. The four - secretary-general Wellington Chibebe and colleagues Lucia Matibenga, Sam Machinda, and Timothy Kondo - were arrested on 5 August under the Public Order and Security Act (POSA) in Gweru, south of the capital, Harare, while attending a workshop on the impact of taxation and HIV/AIDS on workers.