People gather outside a concert hall due to an anonymous bomb threat in Moscow, Russia, on Nov. 2, 2016. About 300 people were evacuated on Wednesday evening at "Moscow concert hall" due to an anonymous bomb threat. (Xinhua/Liu Haojun)
People gather outside a concert hall due to an anonymous bomb threat in Moscow, Russia, on Nov. 2, 2016. About 300 people were evacuated on Wednesday evening at "Moscow concert hall" due to an anonymous bomb threat. (Xinhua/Liu Haojun)