U.S. Attorney Jenny Durkan, who helped negotiate federal oversight of the Seattle Police Department after officers were found to routinely use excessive force, says she's stepping down at the end of the month.

Durkan was appointed by President Barack Obama and served five years as the top federal law enforcement officer for the Western District of Washington.

Durkan, who announced her departure Wednesday, was involved in talks where Seattle agreed to an independent monitor of the police force as part of a deal with the Justice Department over excessive force.

She also has led the Justice Department's subcommittee on cybercrime and intellectual property enforcement.

Before becoming U.S. attorney, Durkan was former Gov. Chris Gregoire's longtime counsel. She is the daughter of the late Democratic state Sen. Martin Durkan.