Preparations were under way in Colombia on Sunday for the promised release of the last 10 military and police captives held by the FARC rebel group. Relatives of the hostages attended a mass in the city of Villavicencio, as one of two Brazilian helicopters sent to collect the captives arrived carrying Colombian mediator and former senator Piedad Cordoba. The FARC announced last month it would free the 10 hostages, held captive for between 12 and 14 years, and end the practice of kidnapping for ransom. Duration: 00:31