PORTLAND, Ore.  - The spokesman for Mayor Sam Adams resigned Monday - the same day his boss returned to work.

Adams told KATU Tuesday that spokesman Wade Nkrumah decided he no longer wanted the job.

"It's not what he signed up for in terms of stress," Adams said Nkrumah told him.

Adams characterized the decision as an amicable one.

The city said Nkrumah's salary as spokesman was $81,244.80.

Adams returned to work at City Hall Monday after deciding over the weekend to remain in office despite calls for his resignation for admitting he lied about having sex with a teenager in 2005.

KATU was unable to reach Nkrumah for comment.

The 48-year-old, who is a former reporter for The Oregonian, told the newspaper he has no new job lined up.

At the beginning of his campaign in 2007, Adams denied he had a sexual relationship with a 17-year-old legislative intern. But Adams admitted earlier this month they had sex after the young man turned 18 and tried to cover it up.

- The Associated Press contributed to this report