[tedivm]

They hit the fuel train that was supplying the convoy with a drone strike and released the footage. The convoy has been stalled for days now, both due to fighting and due to supply chain issues (such as having their supply train blow up).

[astrange]

Claiming there's a "the" convoy and Ukraine has either not ever struck it, or has only struck it once, seems to assume a satellite picture you saw from 2 days ago is the only thing that's happening in the country. A lot has gone down since then they're not going to tell you about.

[bombcar]

Isn't the supply train in the south in Crimea and the convoy in the north near Kiev?

[ProjectArcturis]

There would be separate supply lines for each thrust.

[tokai]

Irrelevant on the question of Russian air superiority over Ukraine. The Ukrainian air force is clearly still operating.