Karimov dismissed Defense Minister Kadyr Gulyamov earlier today. Gulyamov was one of 12 Uzbek official the European Union has banned from entering EU states because of their roles in suppressing unrest in eastern Uzbekistan in May.
Defense Ministry spokesman Rakhim Nurnazarov said Gulyamov was transferred to a different post.
"He was named adviser to the president on matters of education and science, Nurnazarov said.
Mirzaev is also on the EU's list of banned Uzbek officials. No reason was given for the change.
(with material with Reuters/AP)