A group of nine disability rights activists handcuffed themselves to the fence surrounding the White House on Monday afternoon, briefly causing a partial lockdown of the residence's north grounds, according to a Secret Service spokesman.
Several of the activists were in wheelchairs or motorized carts, the spokesman said.
One man was arrested for disorderly conduct and assault against a police officer, the spokesman added.
The protest did not affect President Barack Obama's mid-afternoon departure from the South Lawn aboard Marine One. Obama was headed for a Democratic fundraiser in Philadelphia, Pennsylvania.
The protesters, the spokesman said, belong to an organization called ADAPT, which works to draw attention to disability issues.
ADAPT, according to its Web site, is "a national grass-roots community that organizes disability rights activists to engage in nonviolent direct action, including civil disobedience, to assure the civil and human rights of people with disabilities to live in freedom."
The group says it is fighting "so people with disabilities can live in the community with real supports instead of being locked away in nursing homes and other institutions."
- CNN's Dan Lothian and Alan Silverleib contributed to this report.