British-based firm Reckitt Benckiser has admitted for the first time selling a humidifier disinfectant that killed about 100 people in South Korea.
The head of its South Korean division was attacked by angry relatives as he apologised at a Seoul hotel.
Reckitt Benckiser is among several firms whose products are blamed for the deaths.
It has offered compensation to the families of those who died, as well as the hundreds more who were injured.
Reckitt Benckiser withdrew its product from the market after South Korean authorities suggested a link between chemicals to sterilise humidifiers and lung conditions in 2011.
