LIBBY GEORGE and ALEXIS AKWAGYRIRAM MORE than 300 schoolboys who had been kidnapped in northern Nigeria were handed over to government security agents yesterday, the governor of Katsina state said. Governor Aminu Bello Masari of Katsina State. Picture: Esther Addy/Flickr Governor Aminu Bello Masari said in a televised interview with state channel NTA that a total of 344 boys held in a forest in neighbouring Zamfara state had been freed. "We have recovered most of the boys. It's not all of them," he said. The boys, whose abduction was claimed by Islamist militant group Boko Haram in an unverified audio…