The death toll in the sugar factory explosion in eastern Tanzania has risen from 11 on May 23 to 13 on May 24, a local doctor said, Report informs referring to Xinhua.

George Dilunga, head of the Benjamin Mkapa Hospital Emergency Department, said that the death toll increased after two injured Tanzanian nationals died while receiving specialized treatment at the hospital in the capital, Dodoma.

“Doctors worked round the clock to save their lives, but it is very unfortunate that they could not make it,” Dilunga told Xinhua.

The explosion at the Mtibwa sugar factory in Morogoro Region occurred early Thursday, killing three foreigners from Brazil, Kenya and India, as well as eight Tanzanian technicians.