Charlottesville, Virginia (CNN) [Breaking news update, published at 12:10 p.m. ET]

Virginia Gov. Terry McAuliffe has declared a state of emergency “to aid state response to violence” ahead of Saturday’s “Unite the Right” rally in Charlottesville, according to a post on his Twitter account.

[Breaking news update, published at 11:57 p.m ET]

The city of Charlottesville has declared Saturday’s gathering at Emancipation Park — site of the scheduled “Unite the Right” rally” of white nationalists and right-wing protesters — an unlawful assembly. Police officers are speaking on bullhorns, directing people to leave the park.
CNN video shows police in riot gear standing shoulder to shoulder behind their shields. Some people appear to be leaving the park.
[Original story, published at 11:46 p.m ET]
Demonstrators clashed Saturday on the streets of Charlottesville ahead of a “Unite the Right” rally as white nationalists and other right-wing groups — and counter-protesters — converged in this college town in the latest flare-up of a running nation debate over the country’s identity.
Fist fights and screaming matches erupted before the rally, which police expect to attract thousands of people. The skirmishes unfolded just hours after a scuffle Friday night between torch-bearing demonstrators and counter-protesters at the nearby University of Virginia.
Saturday’s rally is the latest event drawing white nationalists and right-wing activists from across the country to this Democratic-voting college town — a development first precipitated by the city’s decision to remove symbols of its Confederate past.
Though the rally is scheduled for noon ET, hundreds had gathered by mid-morning on Charlottesville’s streets and at a city park.
Shortly before noon, city officials signaled they might move to break it up, declaring it an “unlawful assembly” on Twitter. A local emergency also was declared.