Two Chinese men were sentenced to death on Saturday in a poisoning case that killed two young girls.

The Chinese kindergarten headmaster and one other man who acted as an accomplice were sentenced to death after being found guilty of poisoning two sisters with yogurt in Pingshan County back in April 2013.

Softpedia News reports that out of jealousy towards another local schools attendance rates, the headmaster reportedly placed rat poison in the girl’s yogurt from the opposing school and asked an accomplice to hand it out on the road.

The yogurt had been placed with a notebook and a pencil. The girls died shortly after drinking it.

According to the Associated Press, it is currently unknown if the two will appeal their cases, but China’s supreme court must review all death sentence cases before they are pushed through.

Reports of child abuse have been reportedly frequent in China, as many schools are issuing drugs on the students in an attempt to boost their attendance.