0122 GMT October 20, 2019
The records indicated the Baltimore City Detention Center refused to admit almost 2,600 injured detainees who were in police custody between June 2012 and April 2015, the Baltimore Sun reported.
Some 123 of the detainees reportedly had visible head injuries which is the third-most common ailment cited by prison officials. The other detainees had broken bones, facial trauma and high blood pressure.
Detainees are constitutionally guaranteed healthcare before they are booked into jail.
The records, however, do not show how the people were injured or whether they suffered their wounds while in custody, suggesting that police officers either ignored or did not notice the injuries.
Baltimore police are under scrutiny for their treatment of detainees following the death of African-American man Freddie Gray who died of a broken neck in police custody on April 19.
The death of Gray provoked massive anti-police protests and riots not only in Baltimore but also in other US cities.
Baltimore's chief prosecutor said six officers were charged in connection with the death of Gray.
The Justice Department announced on Friday that it would conduct a federal investigation into Baltimore's police.