SAN FRANCISCO — San Francisco supervisors have overturned the mayor's veto of a controversial ordinance involving how the city deals with illegal immigrant minors facing felony charges.

After Mayor Gavin Newsom last month vetoed a measure that would prohibit local authorities from turning over minors to immigration officials until the minors have been convicted, city supervisors on Tuesday voted 8-3 to override the veto.

Newsom and city supervisors have been at odds over the issue since the mayor ordered a change in the city's policy in 2008 after Edwin Ramos, an illegal immigrant, was charged with the fatal shootings of a man and his two sons.

Ramos had been charged with felonies as a minor, but the city's policy prevented him from being deported.