A fierce blaze tore through a high-rise housing complex in Hong Kong’s Tai Po district on Wednesday, killing four people and injuring three others. The fire, which rapidly climbed bamboo scaffolding around the building, sent thick smoke and flames into the sky and was upgraded to a No. 4 alarm — the city’s second-highest severity level. Firefighters battled the inferno using ladder trucks as multiple residents were reported trapped inside. Authorities are investigating the cause, while early reports of a firefighter among the dead remain unconfirmed.