From The New York Times, "Blast on Crimean Bridge Deals Blow to Russian War Effort in Ukraine":
The blast and fire sent part of the 12-mile Kerch Strait Bridge tumbling into the sea and killed at least three people, according to the Russian authorities. A senior Ukrainian official corroborated Russian reports that Ukraine was behind the attack. The official, speaking on the condition of anonymity because of a government ban on discussing the blast, added that Ukraine's intelligence services had orchestrated the explosion, using a bomb loaded onto a truck being driven across the bridge.
[...] It was unclear if the driver of the truck, who died in the blast, was aware there were explosives inside. In video captured by a surveillance camera on the bridge, a huge fireball is seen, seeming to consume several vehicles. A small sedan and a tractor-trailer truck driving side by side appear at the epicenter of the blast. The explosion caused two sections of the bridge to partly collapse.














Comment: Ukraine realised this morning that Russia's patience has reached its limits as a powerful attack paralyzed Ukraine today.
UPDATE: The Russian strikes targeted at least 11 key infrastructure sites in 8 regions, interrupting or disabling water, power, and telecommunications. According to the Russian military, all intended targets were destroyed: Kiev reports at least 10 people were killed in the strikes. (They claim to have shot down 43 out of 83 missiles.)