Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

A demonstrator holds a placard during an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

A demonstrator takes part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

A demonstrator holds a placard during an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

A demonstrator takes part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

A demonstrator takes part in an anti-racism protest outside the U.S. Embassy in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)

Demonstrators take part in an anti-racism protest in London, Britain, on June 7, 2020. On Sunday, tens of thousands of people joined a second day of anti-racism protests in British cities, sparked by the U.S. police killing of George Floyd, an unarmed African American. Protesters gathered outside the U.S. Embassy in London, chanting "silence is violence" and "color is not a crime." (Xinhua/Han Yan)