A bill that stigmatizes gay people and forbids participating in gay pride activities was passed in Russia by a unanimous 436-0 parliamentary vote.
One member of parliament out of 437 abstained at least.
Before its passage, more than two dozen protesters were attacked by hundreds of anti-gay activists and then detained by police in the nation's capital.
The new bill will fine individuals organizing gay pride events up to 5,000 rubles ($156) and fine companies (including media) up to a million ($31,000).
Foreign citizens involved can be deported or jailed.