Japan has confirmed that it will phase out imports of Russian crude oil but will retain its interest in the Sakhalin 1 and 2 Russian oil and natural gas projects.

Japanese Prime Minister Fumio Kishida said the ban would take time, hours after he joined other Group of Seven (G7) leaders to impose a ban on crude over the Kremlin’s invasion of Ukraine.

In a call with the other G7 leaders he said his government had decided to ban imports of Russian oil “in principle,” according to a statement from Japan’s Foreign Ministry.