Amur-class minelayer (1898)

The Amur-class minelayers were the first purpose-built, ocean-going minelayers in the world. The class consisted of two vessels: Amur and Yenisei. Both ships were constructed for the Imperial Russian Navy in the late 1890s. During the Russo-Japanese War of 1904–05 they were assigned to the Pacific Fleet. Yenisei struck one of her own mines two days after the war began while laying a minefield and sank. One of Amur's minefields sank the Japanese pre-dreadnought battleships Hatsuse and Yashima. Amur was sunk by Japanese howitzers in December 1904 after the Japanese had gained control of the heights around Port Arthur. She was later salvaged and scrapped by the Japanese.

Amur-class minelayer (1898)

The Amur-class minelayers were the first purpose-built, ocean-going minelayers in the world. The class consisted of two vessels: Amur and Yenisei. Both ships were constructed for the Imperial Russian Navy in the late 1890s. During the Russo-Japanese War of 1904–05 they were assigned to the Pacific Fleet. Yenisei struck one of her own mines two days after the war began while laying a minefield and sank. One of Amur's minefields sank the Japanese pre-dreadnought battleships Hatsuse and Yashima. Amur was sunk by Japanese howitzers in December 1904 after the Japanese had gained control of the heights around Port Arthur. She was later salvaged and scrapped by the Japanese.