The Xianfeng Emperor was enraged by the territorial losses to the Russians, so he dismissed Yishan from his office as General of Heilongjiang, despite the latter's attempts to explain himself. In 1860, the Russians intervened in the Convention of Beijing (which ended the Second Opium War), and forced the Qing Empire to recognize the Russian gains under the Treaty of Aigun and further cede its territories east of the Ussuri River, including Sakhalin, to them.
The Xianfeng Emperor was enraged by Russia's territorial gains, leading him to dismiss Yishan from his position as General of Heilongjiang despite his attempts to explain himself.  In 1860, Russia intervened in the Convention of Beijing (which ended the Second Opium War) and forced the Qing Empire to cede territories east of the Ussuri River, including Sakhalin, to them under the Treaty of Aigun.