A 39-year-old woman was arrested Sunday on suspicion of throwing her 8-year-old daughter to her death from a bridge in Toyota, Aichi Prefecture.

Naoko Hatanaka, a homemaker from Kariya, admitted to the charges, police said. Her daughter, Yuka, died Saturday after falling from the bridge, which spans a highway below.

Hatanaka attempted to jump from the bridge after throwing her daughter off but was stopped by passersby.

She reportedly became psychologically unstable after giving birth to her daughter.