As planned, another protest is on its way down Market Street, in opposition to today's inauguration of President Donald Trump. 

The ANSWER Coalition-sponsored demonstration started with a 5pm rally at UN Plaza, and began heading westbound on Market just after 6pm. It's currently near Larkin Street, and buses have come to a standstill. Marchers on the ground estimate the crowd at over a thousand people. 

Evening #J20 march begins moving from UN Plaza towards 8th Street in SF. #rebelcitiesrising #ResistTrump pic.twitter.com/T94lI4J0zH

— San Francisco Rising (@SF_Rising) January 21, 2017

Protesters are chanting "No Trump, no KKK" and "Move, Trump, get out the way."

Update, 6:14pm: The protest is now at a standstill, blocking Market and Van Ness. 

The protest's eventual destination is 24th Street, according to the SFMTA. Muni buses are being rerouted: 

ATTN: Protest March from Civic Center to 24th St has begun. All #SFMuni Market St svc west of Civic Center will see delays.

— SFMTA (@sfmta_muni) January 21, 2017

ATTN: In advance of the Protest March, the IB/OB 14, 14R, and 49 will now be routed via South Van Ness btwn 14th and 26th.

— SFMTA (@sfmta_muni) January 21, 2017

Update, 6:29pm: SFMTA now says the protest is heading to the Castro.

ATTN: When the protest march reaches Castro & 18th, the 24 & 33 may see service holds and/or re-routes.

— SFMTA (@sfmta_muni) January 21, 2017

Hundreds march, protest @potus @realDonaldTrump in #sanfrancisco. @sfchronicle @SFGate pic.twitter.com/T9n8UAat7E

— Santiago Mejia (@SantiagoMejia) January 21, 2017

Update, 6:50pm: The protest has reached Safeway at Church and Market:

#protest marching down market st! Hella ppl bruh! Awesome! #resist #resisthate #sanfrancisco pic.twitter.com/j8TVxeHkIC

— openchakra (@openchakra) January 21, 2017

Update, 7:36pm: After stopping over in the Castro, the protest headed down 18th Street, and is now on its way to Mission Street. Helicopters can be heard overhead.