Taro Okamoto mural undergoes cleaning

A huge mural by the famed Japanese artist Taro Okamoto has undergone cleaning and restoration at a Tokyo station.

The 30-meter by 5.5-meter mural is called "Tomorrow's Myth." It's been on display in Shibuya station in central Tokyo since 2008.

The late artist spent a year painting the masterpiece, starting in 1968. The mural depicts the very moment of a nuclear bomb explosion.

Early on Saturday morning, 8 volunteers standing on a stage carefully removed dust from the surface using brushes and electric cleaners.

This summer's heat wave warped the acrylic panels attached to the mural, putting it out of alignment. A restoration expert reinforced the mural with resins.

The director of Taro Okamoto Memorial Museum, Akiomi Hirano, said the warp didn't affect the mural. He said he wants as many people as possible to come and feel the spirit of Okamoto.