Protesters said newly re-elected Prime Minister Viktor Orban and his right-wing nationalist Fidesz party effectively stole the election.
The exact number of deaths is not entirely clear; the Palestinian Health Ministry says at least eight were killed.
Black Lives Matter and various organizations protested, organized and rallied on the anniversary of Martin Luther King Jr.'s death.
A woman sustained minor injuries after a Sacramento County Sheriff's Department vehicle hit her during a protest in California.
Hundreds of residents protested in Kemerovo, Siberia, after the fire that killed 64 people.
There are worldwide sister demonstrations of the Women's March.
The country's president said Iranians have the right to protest but not to cause damage or violence.
Rouhani said Iranians had the right to be heard, but not to cause violence or damage property.
Starting earlier this month, protesters blocked a main highway into the capital city Islamabad and called for the country's law minister to resign.
Protesters say the government decision to remove a declaration of Muhammad as God's final prophet from its oath of office was blasphemy.
A total of 20 former Catalan leaders face charges relating to the independence referendum Madrid deemed illegal.
The Berkeley City Council voted Tuesday to allow police to use pepper spray on violent protesters.