Oakland Mayor Ron Dellums announced Wednesday that he won't seek re-election in November.
Dellums, 74, was elected mayor in June 2006 and took office in January 2007. His term expires next January.
Born in Oakland in 1935, Dellums previously represented the Oakland area in Congress for 27 years and worked as a lobbyist.
Dellums' announcement comes just two days before Friday's deadline for filing papers for the mayoral election. But because the incumbent won't be running, the deadline will be extended until a week from Wednesday.
In a statement issued by his office, Dellums said, "Five years ago, my wife and I accepted the call to service based on our love of Oakland, our home, and our lifelong commitment to public service."
"I have dedicated 35 incredible years - most of my adult life - to my community," he said. "I have been a political activist, community organizer, social worker, City Council member, legislator, and now an executive. Now it's time to pass the baton to the next generation of leadership."
Dellums said, "As I reach the end of this term, I am proud to see an Oakland that is more engaged, more enlightened and more empowered to continue the important work that lies ahead."
He continued, "I have been profoundly moved by the extraordinary opportunity to serve as mayor of Oakland. It has been my honor and privilege. This is my home and I will continue to offer my services to this great city in any way that I can in the coming years."