Major-General Abdul-Karim Khalaf, an Iraqi military spokesman, said on Thursday that six of the escaped inmates are considered dangerous.
A curfew was imposed on the city after the escape, which occurred on Wednesday night.
Authorities are distributing wanted posters with photos of the fugitives and are running checkpoints around Tikrit, the hometown of Saddam Hussein, the deposed Iraqi leader.
Published by Mike Hitchen i On Global Trends, world news, analysis, opinion
Putting principles before profits
Putting principles before profits