Hyderabad, June 9 -- A worker injured in Monday's deadly molten steel explosion at the Visakhapatnam Steel Plant pleaded with his son from a hospital bed to take good care of their mother and ensure his younger brother's education, words that have since moved many who heard them.

The worker, whose condition remains critical, was among the six injured in the disaster at the RINL-run plant on June 8. In a video, he reportedly asked his friend to record for his son, he says, "Take care of your younger brother and both of you study well and look after Amma," before shutting his eyes.

A ladle carrying molten steel at roughly 1,600 degrees Celsius collapsed during a crane operation at around 4:35 pm, spilling scalding liquid metal onto worker...