At least one topless woman ran out towards President Donald Trump’s motorcade as he travelled to the Arc de Triomphe for a ceremony commemorating the 100th anniversary of the end of World War One.
She had slogans written on her chest that included the words “Fake” and “Peace”.
President Trump is among dozens of leaders attending the centennial anniversary ceremony.
Most of the other leaders travelled together, from the Elysee Palace. President Trump arrived on his own.
The feminist activist group Femen later claimed responsibility for the topless protesters.
Femen’s protesters have repeatedly breached security around world leaders and major events.