24-year-old Lamora Williams from Atlanta, Georgia, locked two of her four children in the oven around midnight Thursday and Friday late evening

A single mother has been accused of killing her two youngest sons 'by placing them in an oven and turning it on,' according to an arrest warrant.

Lamora Williams from Atlanta, Georgia, allegedly put Keyante Penn, two, and Ja'karter Penn, one, in the oven, turned it on, and burned them alive on Friday,The Atlanta Journal-Constitution reported.

The 24-year-old is believed to have recently quit her job because she couldn't find a babysitter and told her friends she'd 'had enough'.

Williams was said to have suffered from undiagnosed mental health problems brought on by her father's passing when she was 19 and being a single mother of four young children.

Police say the boys had suffered horrifying burn marks when their bodies were taken from the apartment.

After she allegedly killed the children, she video chatted her boys' father, Jameel Penn. He alerted the police immediately when he saw his motionless children on the ground and realized something wasn't right.

Williams told cops the pair may have died while they were in the care of another person, but they soon realized that wasn't true.

The oven was taken from the scene for additional investigation and an official autopsy is still being conducted.

Fulton County jail officials say Williams waived her first appearance in court on Monday for felony murder charges.

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Keyante Penn, two, (pictured left) and Ja'karter Penn, one, (seen right) were found dead in their Atlanta home

The boys' father, Jameel Penn said he's 'lost' now that his two sons's are dead, though his three-year-old son (left) survived

According to the Atlanta police, the one and two-year-old boys 'received burn marks on their bodies at some point, possibly from the stove'

At a vigil while holding another one of his sons Jameel, three, Penn said: 'I ain't got no soul no more.'

The boy had been in the home when police arrived but was unharmed.

The mother's six-year-old daughter was with family on Friday and not at the apartment.

And while she was said to have been getting help from Penn, it wasn't enough.

Police said the children has obvious injuries and burns on their bodies. They were seen removing an entire oven from the home as evidence

Williams was said to have suffered from undiagnosed mental health problems brought on by her father's passing when she was 19 and being a single mother

The mother was said to have quit her job around a month ago because she was unable to find the kids a babysitter.

'Nobody could tell what she was going through,' said friend Neesa Smith.

Smith added that Williams had called her on Friday night saying she 'couldn't do it anymore.'

She was allegedly told by the mother that the boys were already dead when she asked for more details.

Smith said she told Williams to call the police but instead the mother called Penn.

Police said Williams claims to have left her kids with a caregiver at noon on Friday and came back to find them dead and the caretaker gone.

But officials don't believe that she left them.

Her sister, Tabitha Hollingsworth, feels Williams should be put on suicide watch in Fulton County jail.

Family has not been allowed to see her.