 Euphemius' forces pursued and drove Constantine out of Catana, and eventually captured and executed him.Euphemius was then proclaimed emperor.The historian Alexander Vasiliev doubts the "romantic" story of the origin of Euphemius' revolt, and believes that the ambitious general simply used an opportune moment, when the central Byzantine government was weakened by the recent Revolt of Thomas the Slav, and by its preoccupation with the contemporary Muslim conquest of Crete, to seize power for himself.