A 60-metre tower collapsed during demolition work at a decommissioned thermal power plant in the South Korean city of Ulsan, killing at least one person and leaving six others trapped under rubble, officials said on Friday. A second person was feared dead.

Rescue workers pulled two people to safety shortly after responding to the tower collapse on Thursday afternoon. Another worker, who was rescued later, was pronounced dead at a hospital early Friday, Kim Jeong-shik, an official with Ulsan's fire department, said.