Deadly attack shakes Russian capital and sows doubts about security

A woman lights candles at the fence next to the Crocus City Hall (Alexander Zemlianichenko/AP)

Shocked Russians took flowers and teddy bears on Saturday to the Crocus City concert hall on the outskirts of Moscow, to pay their respects to more than 100 people who died in a grisly attack claimed by the so-called Islamic State group.

Mourners hung flowers on fences and piled them on the ground a short distance from the concert hall where gunmen opened fire on a crowd and set off explosives that started a huge fire.