"We were always together then, and we remain together now."
Sunday's earthquake was one of the strongest to hit Afghanistan in recent years.
This is a big week for President Xi Jinping, who will host Putin and Kim Jong Un in Beijing.
In May, US Secretary of State Marco Rubio said he would "aggressively" revoke Chinese visas.
He crossed into China on Tuesday onboard his armoured train, which is said to include a restaurant serving fine French wines and dishes like fresh lobster.
Shanghai Cooperation Organization (SCO) Summit 2025 will be held in Tianjin from Aug 31 to Sept 1
The two leaders spent 45 minutes inside the Russian leader's car.
Meta said it will introduce more guardrails to its artificial intelligence (AI) chatbots.
The decision was issued in a diplomatic cable dated 18 August, the New York Times and CNN reported.
