Korea police chief says crowd control at Halloween crush was inadequate

South Korea's police chief said on Tuesday that crowd control in the area where a crush killed more than 150 party-goers in central Seoul was "inadequate."

Yoon Hee-keun made the remark at a news briefing televised live, saying he felt heavy responsibility over the incident, where a surge in Halloween partiers trapped in narrow alleys killed 156 people and injured another 151.