Major Nguyen Trong Tue, head of the Nghi Loc District Police told the Vietnam News Agency that the explosion occurred at the oil pipeline of the wood press.
Authorities have already cordoned off the scene of the accident for further investigations.
Rescue teams sent seven workers to the province’s 115 Nghe An General Hospital and four others to the Huu Nghi General Hospital for emergency aid and treatment.
Doctor Nguyen Van Hung, from the 115 Nghe An General Hospital, said five among the seven injured workers, who are being treated at the hospital’s ICU were being treated for serious burns on the face, back, hands and feet.
Two among the four workers at the Huu Nghi General Hospital were also in a serious condition.
On the same day, the district Vice Chairman Tran Thi Anh Tuyet went to the scene of the explosion for inspection and paid visited the injured workers at the hospitals.
