An unusual protest is scheduled for Washington on Wednesday. Women plan to drive around the Saudi Embassy to protest the kingdom’s ban on female drivers.

The Institute for Gulf Affairs, which calls itself an independent, non-partisan organization for disseminating information about the Gulf region and is sponsoring the event, accuses Saudi Arabia of a system of gender apartheid that oppresses women — most noticeably by refusing to allow them behind the wheel.

The protest will run from noon to 4 p.m. outside the embassy in Foggy Bottom. It is designed to coincide with a protest planned for Friday inside the kingdom itself.