DENISON, Iowa (AP) – A western Iowa police chief who’d been disciplined for lewd and offensive computer images has lost his job.

Denison Mayor Dan Leinen said Thursday that he’d asked for Chief John Emswiler’s resignation, which Emswiler submitted earlier in the day. Leinen says he’d sought Emswiler’s exit for personnel reasons he wouldn’t describe. The mayor denied reports that they were connected to the images found on the chief’s computer.

A former Denison officer had reported that Emswiler had pictures of his staff on his computer and that Emswiler would use editing software to put “their heads on different stuff.” The city attorney said the chief was disciplined and that the city considered the matter closed.

A public phone listing for Emswiler couldn’t be found Friday.