Two female sixth-graders died Friday after jumping out of a Tokyo condominium in Ota Ward, police said.

Although one of the girls was still alive when they were found on the premises of the building at around 3:30 p.m., she was later pronounced dead at a hospital.

An apparent suicide note was later found, investigative sources said, adding that the girls left their shoes neatly arranged on a staircase landing between the seventh and eighth floors of the building.

The Ota Ward board of education said the two girls, aged 11 and 12, were in the same class and one lived in the condominium building. Both are believed to have attended school Friday, the board said.

The girls' classmates said they were both bright and leaders among their friends. Neither appeared worried recently, they said.