This photo taken on March 6, 2026 shows the cityscape of Kazan, Russia. (Xinhua/Hao Jianwei)

This photo taken on March 7, 2026 shows the cityscape of Kazan, Russia. (Xinhua/Hao Jianwei)

This photo taken on March 6, 2026 shows the cityscape of Kazan, Russia. (Xinhua/Tang Tiefu)

This photo taken on March 6, 2026 shows the cityscape of Kazan, Russia. (Xinhua/Hao Jianwei)