Moscow says the move is in retaliation for a drone attack on its navy. Ah, welcome to our viewers around the world. Im michael ok. South korea has declared a period of National Mourning for the victims of a crowd church during halloween celebrations in the capital. So the crush happened in a narrow alley way in a district of the south korean capital it tie one. Its a popular night life area and often attracts large numbers of visitors. An investigation is now underway into what caused the tragedy. A warning that this report includes distressing images. Oh, it was a night of youthful revelry. That turned into a real life horror story. When a crush in the south korean capital soul left over 150 dead around 800000 people, a thought to have flocked to the narrow alley ways of its. I won what happened next in the streets remains and clear. But as dozens of young people collapsed, strangers administered cpr to those in need. Witnesses described scenes of chaos unfolding on the streets around