Authorities say a group of heavily armed men disguised as police officers invaded a slaughterhouse in southeastern Brazil and stole more than 100 tons of meat.
Police say about 25 men entered the slaughterhouse on Sunday and forced the workers to load the meat into three trucks, which were used in the escape.
Police officer Jose Carlos Oliveira said Monday four workers were taken hostage but later released unhurt near the slaughterhouse in the interior city of Valinhos.
The thieves also made off with a safe and the computer that held the security camera images.
Police say the group likely had inside information on the slaughterhouse's security system.
No arrests have been made.