SEOUL, June 4 (Yonhap) -- Tower crane workers belonging to two major labor umbrella groups kicked off a nationwide strike Tuesday, calling for a pay raise and prohibition of the use of smaller tower cranes.
The operation of around 2,500 tower cranes was suspended at construction sites, with the same number of unionized workers staging a work stoppage on top of them.
The Korean Confederation of Trade Unions (KCTU) and the Federation of Korean Trade Unions announced a plan for an unlimited strike Monday.
The workers called for a 7 percent wage hike and better working conditions. They also urged the government to ban builders from using tower cranes whose load weight is less than 3 tons, claiming they are prone to safety accidents.