Two of the most wanted Islamist Brothers Khuseyn and Muslim Gakayev have been accused of organizing several high-profile attacks, including a suicide bomb attack on an interior ministry vehicle that killed four people last August. They were also blamed for an attack on the Chechen parliament in 2010 when which killed at least six people, and an assassination attempt at the residence of Moscow-backed Chechen leader Ramzan Kadyrov.
An unnamed Interior Ministry spokesman said, "During a special operation in the mountains of Chechnya, 12 militants were killed."