Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say

Unions and concern groups ask why sewer workers were underground and whether contractors provided protective gear or followed safety rules.

Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say

Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say

Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say

Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say

Hong Kong authorities should investigate contractor safety measures after death of 2 sewer workers, unions and concern groups say