Group With Alleged Qaeda Ties Claims Responsibility for St. Petersburg Metro Bombing The group, the Imam Shamil Battalion, said a suicide bomber acted on the orders of Ayman al-Zawahri, the Qaeda leader, and it threatened additional attacks. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:In Mexico, ‘It’s Easy to Kill a Journalist’China Deports American Woman Convicted on Spying ChargeEuropean Leaders Gather Without May, but With ‘Brexit’ on Their MindsDespite the ‘Yuck Factor,’ Leeches Are Big in Russian MedicineTrump’s 100 Days on World Stage: Rallying Some and Repelling OthersShobha Nehru, Who Escaped Holocaust and Married Into Indian Politics, Dies at 108