Johannesburg – Police in southern Zimbabwe have intercepted two buses carrying more than 60 Mozambicans fleeing unrest back home and heading for South Africa, a report says.One bus was carrying 59 Mozambicans who had slipped across the Zimbabwe border and were heading for Beitbridge, according to the state-controlled Manica Post. In the second incident, also involving a Beitbridge-bound bus, the report said police "managed to arrest" seven Mozambicans. "They said they were on their way to South Africa," a police spokesperson told the newspaper. It was not clear if others evaded arrest.The Manica Post said the passengers were detained, as have 13 Zimbabweans now facing charges of human trafficking. The incidents happened on June 28 and 30, according to the newspaper. Reports last month said Mozambican villagers from Manica Province were fleeing unrest and crossing into Zimbabwe with their goats and cattle. Tensions have risen since 2013, with Renamo fighters taking up arms in a battle it said was against the Frelilmo elite.