Previously undiscovered photographs of Hiroshima taken by the Imperial Japanese Navy two days after the atomic bombing have turned up in the Yamato Museum in Kure, Hiroshima Prefecture.

Most of the 15 pictures are believed to show the same scenes as previously known photos, but from slightly different angles, according to the Hiroshima Peace Memorial Museum.

Experts say photographs taken only two days after the attack are extremely rare and have historic value. The Yamato Museum is currently analyzing the pictures, which may be shown to the public in the future.