Parts of Oxford Street have been shut down after a second Black Lives Matter protest today.
Protesters took to Oxford Street to march against the killings of Philando Castile and Alton Sterling in America.
Last night, dozens of protesters brought parts of Brixton to a standstill, chanting "black lives matter".
TfL have told people to expect delays in the area.
Many carried placards reading "black lives matter" and "no justice, no peace".
Protester Fahad Mirza said he was marching today because he was sick of hearing news about black people facing injustice.
He said: "The atmosphere here encompasses unity and the real meaning of Black Lives Matter is embodied by the people here protesting.
"I, as an Asian person, decided to go as I am sick and tired of waking up to hear of another black person facing injustice."
Crowds chanted together "No justice, no peace, no racist police" and "I'm black, don't shoot."
Met Police officers are at the scene.
Yesterday's march passed off peacefully, with only one arrest for obstruction.
The group of protesters were camped outside the US Embassy before moving through Hyde Park and Regent Street.
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