President Obama participates in a "Civil Society Roundtable" with gay, lesbian, bisexual and transgender activists Sept. 6 in St. Petersburg. (Pablo Martinez Monsivais/AP)

Hoping to shine a light on Russia's new anti-gay law, President Obama met with civil rights activists during his final official function in St. Petersburg at the G-20 economic summit.

The president sat down with nine activists in a hotel meeting room, along with national security adviser Susan Rice and U.S. Ambassador to Russia Michael McFaul. In brief remarks before the meeting, Obama called their work "critically important" in creating an open society.