Russia's foreign minister has urged the country's parliament to agree a tough response to a US law punishing Russian human rights violators, risking frostier relations with Washington.

Moscow has already announced restrictions on American meat imports, but Foreign Minister Sergei Lavrov said the parliament should now respond to the US Senate's so-called Magnitsky Act. The State Duma, or lower house, will discuss retaliation this week.

Alexei Puskhov, head of the Duma foreign affairs committee, said a majority of politicians wanted a tough response, and called for visa restrictions on US citizens who have violated human rights, without saying who this might include.