Chinese President Xi Jinping left Moscow on Wednesday morning after a three-day visit to the Russian capital that seemed to produced mixed results for the tentative allies.

China’s leader and his Russian counterpart Vladimir Putin reaffirmed areas of strategic cooperation and plans to extend economic ties and increase trade up to 2030. They also both criticized the U.S. for undermining global strategic stability.

Russian offensive on Bakhmut could be losing momentum, UK says

Russia’s bid to seize Bakhmut in Donetsk, eastern Ukraine, could be losing momentum, according to the U.K.’s Ministry of Defence.

“There is a realistic possibility that the Russian assault on the town is losing the limited momentum it had obtained, partially because some Russian MoD [Ministry of Defense] units have been reallocated to other sectors,” the British defense ministry said in an intelligence update Wednesday.

It noted that Ukrainian forces had been able to initiate a local counterattack to the west of Bakhmut in recent days, a move that was likely to relieve pressure on the threatened H-32 supply route, one of the last main roads into the city that its Ukrainian defenders can use. 

UK says no nuclear escalation in Ukraine after row over depleted uranium munitions

Britain’s Foreign Secretary James Cleverly said on Wednesday there was no nuclear escalation in the Ukraine war after Russian President Vladimir Putin criticized Britain for supplying depleted uranium tank munitions to Ukrainian forces.

Britain had on Monday confirmed it was supplying Ukraine with ammunition which contained depleted uranium. The heavy metal is used in weapons because it can penetrate tanks and armour more easily due to its density, amongst other properties.

But Putin on Tuesday condemned British plans to send such ammunition to Ukraine, saying Moscow would be forced to respond accordingly as such weapons had “a nuclear component.”