Lavrov calls Nemtsov murder 'heinous crime'; urges moves by Ukraine

Russian Foreign Minister Sergei Lavrov attends the 28th Session of the Human Rights Council at the United Nations in Geneva March 2, 2015. REUTERS/Denis Balibouse

GENEVA (Reuters) - Russian Foreign Minister Sergei Lavrov told the main U.N. human rights forum on Monday that the murder of Kremlin critic Boris Nemtsov was a "heinous crime" and that President Vladimir Putin was leading an investigation to bring perpetrators to justice.

He addressed the Geneva forum shortly before U.S. Secretary of State John Kerry and after the foreign ministers of Croatia and Slovakia voiced concern at the killing in Moscow on Friday.