Sunni politicians said looting raged out of control in Tikrit on Friday, hours after Iraqi's prime minister called on security forces to arrest anyone breaking the law after the city had been wrested back from Islamic State militants.
The rampage of theft and burning began on Wednesday, within hours of the Iraqi government declaring that security forces and Shi'ite paramilitaries had retaken the Sunni Muslim city, which Islamic State captured in June.
Sunni lawmakers blamed rogue security force elements and members of the Shi'ite paramilitary groups for the chaos.
Ahmed al-Kraim, the head of the Salahuddin provincial council, told Reuters fighters he identified as belonging to the Shi'ite paramilitaries had burnt "hundred of houses" over the past two days.
"Our city was burnt in front of our eyes. We can't control what is going on," said Kraim, who left the city for Baghdad late on Friday to avoid the carnage.
Another member of the provincial council, Khalid al-Jassam, said the local government was calling for the Shi'ite militias to leave and for the military and local and federal police to guard the city.
Earlier, Prime Minister Haidar al-Abadi's office issued a statement calling "on the forces in Tikrit to arrest any person" breaking the law there "and to preserve the belongings and facilities in Salahuddin province".
The Iraqi government claimed victory over Islamic State insurgents in Tikrit after a month-long battle for the city fought by militiamen in tandem with the Iraqi army and federal police.