Hong Kong Police Force officers in hazmat suits work at the Wang Fuk Court residential estate in Hong Kong's Tai Po district on Monday. Hong Kong security chief Chris Tang also declined to comment on specific operations at a press conference on Monday. “I’ve noticed that some people with malicious intent, aiming to harm Hong Kong and national security, have taken advantage of this painful moment for society,” he said. Mourners lay flowers as they pay their respects at a makeshift memorial outside the Wang Fuk Court apartment blocks on Monday. “We sternly warn the anti-China disrupters who attempt to ‘disrupt Hong Kong through disaster’,” the office said in a statement.