UK MoD: "As a result of a Ukrainian strike against a Russian ammunition train in Kherson oblast, southern Ukraine, it is highly unlikely the rail link connecting Kherson with Crimea remains operational."
This sounds good. Even though the invaders are probably able to repair the link in a few days, it shows that it may well be cut again in the third day. The same kind of pressure the Snake Island got. Makes life miserable for the russkies as resources like security and hardware are then needed for repairs causing lack of resources in the battle field in terms of supplies, weapons and troops, eventually they need to abandon the weak rail link and need to start driving trucks via land but they don't have enough trucks and convoys are vulnerable too... in a few months the weather starts to deteriorate temperature dropping close to zero at night with rainfalls. Hopefully Ukraine gets as much supplies from the west as possible as fast as possible before the winter to equip the hundreds of thousands of troops Ukraine is getting out of the training, at the same time the Russian resources are being eaten out meaning they need to scrape even older and worse equipment from the stock.