A group of Russian gay rights advocates were pelted with rotten eggs as they protested a proposed "homosexual propaganda" law in Moscow.

City police eventually broke up the demonstration, which involved a same-sex "kiss-in," and arrested the protestors, according to Gay Star News.

"There was about 15 people there," Russian lesbian, gay, bisexual and transgender (LGBT) rights activist Nikolai Alekseev told the publication. "There were about four or five couples, male and female, kissing. Then this radical Orthodox activist attacked them physically and with eggs."

He went on to note, "It was quite violent. It was really like the Middle Ages, I would say."

As the Associated Press reported, the State Duma ultimately decided to postpone the debate on the bill, which would introduce sanctions for "providing minors with information on homosexuality," until next month.

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  • Gay right activists brave flying rotten eggs thrown against them by anti-gay orthodox activists during a gay's 'kiss-in' protest just outside the lower house of Russia’s parliament, the State Duma, on December 19, 2012. Russian legislators planned to debate today a bill that would introduce sanctions for providing minors with information on homosexuality, but later the debate was postponed until the next month. AFP PHOTO / ANDREY SMIRNOV (Photo credit should read ANDREY SMIRNOV/AFP/Getty Images)

  • Russian gay right activists kiss during a protest near the State Duma, Russia's lower parliament chamber, in Moscow, Russia, Wednesday, Dec. 19, 2012. The State Duma was set to debate a bill that would introduce sanctions for providing minors with information on homosexuality, but postponed the debate until the next month. (AP Photo/Misha Japaridze)

  • Police officers detain gay right activists during a protest near the State Duma, Russia's lower parliament chamber, in Moscow, Russia, Wednesday, Dec. 19, 2012. The State Duma was set to debate a bill that would introduce sanctions for providing minors with information on homosexuality, but postponed the debate until the next month. (AP Photo/Misha Japaridze)

  • Gay right activists brave flying rotten eggs thrown against them by anti-gay orthodox activists during a gay's 'kiss-in' protest just outside the lower house of Russia’s parliament, the State Duma, on December 19, 2012. Russian legislators planned to debate today a bill that would introduce sanctions for providing minors with information on homosexuality, but later the debate was postponed until the next month. AFP PHOTO / ANDREY SMIRNOV (Photo credit should read ANDREY SMIRNOV/AFP/Getty Images)

  • Police officers detain gay right activists during a protest near the State Duma, Russia's lower parliament chamber, in Moscow, Russia, Wednesday, Dec. 19, 2012.The State Duma was set to debate a bill that would introduce sanctions for providing minors with information on homosexuality, but postponed the debate until the next month. (AP Photo/Misha Japaridze)

  • Police officers detain gay right activists during a protest near the State Duma, Russia's lower parliament chamber, in Moscow, Russia, Wednesday, Dec. 19, 2012. The State Duma was set to debate a bill that would introduce sanctions for providing minors with information on homosexuality, but postponed the debate until the next month. (AP Photo/Misha Japaridze)

  • Police officers detain on of the gay right activists holding a 'kiss-in' protest just outside the lower house of Russia’s parliament, the State Duma, on December 19, 2012. Russian legislators planned to debate today a bill that would introduce sanctions for providing minors with information on homosexuality, but later the debate was postponed until the next month. AFP PHOTO / ANDREY SMIRNOV (Photo credit should read ANDREY SMIRNOV/AFP/Getty Images)

  • Police officers detain gay right activists holding a 'kiss-in' protest just outside the lower house of Russia’s parliament, the State Duma, on December 19, 2012. Russian legislators planned to debate today a bill that would introduce sanctions for providing minors with information on homosexuality, but later the debate was postponed until the next month. AFP PHOTO / ANDREY SMIRNOV (Photo credit should read ANDREY SMIRNOV/AFP/Getty Images)

  • Police officers detain gay right activists holding a 'kiss-in' protest just outside the lower house of Russia’s parliament, the State Duma, on December 19, 2012. Russian legislators planned to debate today a bill that would introduce sanctions for providing minors with information on homosexuality, but later the debate was postponed until the next month. AFP PHOTO / ANDREY SMIRNOV (Photo credit should read ANDREY SMIRNOV/AFP/Getty Images)