Bonifatius left it at the mercy of Gaiseric .
Bonifatius retreated out of the city to join his forces with the Eastern Roman general Aspar , who had been sent to reinforce Africa by Theodosius II .
Leaving it at the mercy of Gaiseric , Bonifatius retreated out of the city to join his forces with the Eastern Roman general Aspar , who had been sent to reinforce Africa by Theodosius II .