The first call to police from the popular Itaewon nightlife district in South Korea's capital, Seoul, came ‘several hours’ before the deadly crush took place.<br /><br />More than 150 people died in the incident and South Korea's interior minister Lee Sang-min has since apologised.<br /><br />All the victims have been identified and memorial altars have been set up at the Seoul city hall where citizens have been paying their respects.