Three naked protesters have been arrested by San Francisco police for violating the city's ban on public nudity.

The San Francisco Chronicle reports (http://bit.ly/1HHycc2) Sunday's demonstration in the Castro District was called to mark the second anniversary of the city law, which bans public nudity except at events whose sponsors obtain permits.

Nobody got a permit for the protest, and officers arrested two men and a woman who ignored officers' warning that they were violating the ordinance.

Officers said the trio had to be taken into custody instead of being cited because they did not have identification.

The newspaper said those arrested were George Davis, a veteran nudity protester, and Gypsy Taub and her husband Jimmy Smith, who held a nude wedding on the steps of City Hall in 2013.