Russia widened its retaliation against the United States, banning adoption of Russian children by U.S. citizens and warning of tit-for-tat measures against U.S. visitors over a spiraling human rights debate.

Russian Foreign Minister Sergei Lavrov said he informed U.S. Secretary of State Hillary Clinton of Moscow's decision to bar Americans guilty of human rights violations.

Lavrov's statement was a response to new U.S. legislation that streamlines trade with Russia but authorizes sanctions against Russians found guilty of human rights violations.