A mum who left her kids at home to make a food delivery returned home to find her seven-year-old boy was dying.

The mum, who works for a food delivery service, had been at home with the boy and his two sisters on Wednesday.

She told her children she had to make a delivery and would be right back, The Houston Chronicle reports.

But when she returned to her west Houston townhouse in Texas, US, she found her little boy dying.

According to reports, the seven-year-old schoolboy was found in the bathroom hanging.

She called 911 just after 3am and emergency services scrambled to the house.

Dispatchers said they heard children’s screams in the background of the call.

The boy was tragically found dying in the bathroom, it has been reported

Firefighters arrived within minutes of the call and tried to revive the schoolboy with CPR.

He was rushed to hospital where he later died.

An investigation has been launched into the boy's death.

It is not clear if the mum will face prosecution, The Houston Chronicle reports.

According to the outlet, police said the mother works as an food delivery driver to support her three children.

She had left the children unsupervised to go to work, the outlet reported.