Portland’s fire chief is resigning, the city manager said Tuesday.

Jerome LaMoria, chief since January 2013, will resign effective Oct. 20, according to City Manager Jon Jennings.

“Chief LaMoria has been a great leader who has overseen the Fire Department during a time period that included a number of organizational changes that will carry the department into the future,” Jennings said in a statement released Tuesday afternoon. “While we are sad to lose his leadership, we wish him all the best in his future endeavors.”

A statement from LaMoria also was included in the city’s news release announcing the departure.

“I want to express my deep admiration for the excellent work and dedication that the men and women of the Fire Department display every day,” said LaMoria. “I am very proud of the service they provide to this great city, and I am grateful to have had the opportunity to serve this department.”

“I am very proud of all that we were able to accomplish during my time here,” he added. “We pushed boundaries and implemented a lot of change that has resulted in a more effective and efficient department.”

The statement included no explanation for LaMoria’s resignation.

“My understanding is his resignation was due to personal reasons,” said city spokeswoman Jessica Grondin. “He did not elaborate in his resignation letter.”

LaMoria is the second department head in a month to leave the city.

After 12 years, Mike Bobinksy, the director of public services, was granted a two-month paid leave, which started Sept. 15, at the end of which his resignation becomes effective.

Other top-level managers have departed city government in the past year, including the assistant director of public services, the finance director, the human resources director, and the health and human services director.