Kiev and Moscow accuse each other of being behind the explosion. "We must be careful before attributing responsibility," recommends a French military source.

"This outrageous act demonstrates once again the brutality of Russia's war in Ukraine," NATO Secretary General Jens Stoltenberg said. In military circles, there is a tendency to the hypothesis of mining the building...This article is for subscribers only. You still have 84% to discover.Want to read more?Unblock all items immediately.