TULSA, Okla. (AP) — Those responsible for a ransomware attack on the city of Tulsa last month are sharing personal information of some residents online, city officials said Wednesday.

More than 18,000 city files, mostly police reports and internal police department files, have been posted on the dark web, said Michael Dellinger, Tulsa's chief information officer.

"While we're still investigating, some of the files contained personally identifiable information, such as name, date of birth, address and driver's license (numbers)," Dellinger said.

He said the police reports do not include social...