A campaign calls on Saudi women to defy the country 's de facto driving ban on Saturday . ` The Interior Ministry warns Saudi laws prohibit `` activities disturbing the public peace '' such as driving, riding a bicycle or walking in groups of more than two people '' and that those who break them will be punished by up to three years in prison. Instead , she says , it is a warning to others planning to stage protests of their own .
A campaign calls on Saudi women to defy the country 's de facto driving ban on Saturday . The Interior Ministry warns Saudi laws prohibit `` activities disturbing the public peace '' such as driving, riding a bicycle or walking in groups of more than two people '' and that those who break them will be punished by up to three years in prison. Instead , she says , it is a warning to others planning to stage protests of their own .