Amsterdam's mayor faced criticism from politicians and health experts on Tuesday after thousands of demonstrators packed the city centre for an anti-racism rally in violation of social distancing rules put in place to ward off the coronavirus. The protesters rallied in support of George Floyd, a black American who died in police custody in the United States last week, their number swelling from an expected 200-300 to several thousands on Monday. Amsterdam Mayor Femke Halsema, of the Green Left party, said city authorities were caught off guard by the huge turnout and could not have intervened peacefully.