Looks like the missile was fired by Ukrainian defense forces and was accidental.
PRZEWODOW, Poland (AP) — Poland said Wednesday there is “absolutely no indication” that a missile which came down in Polish farmland, killing two people, was a intentional attack on the NATO country, and that neighbor Ukraine likely launched the Soviet-era projectile as it fended off a Russian air assault that savaged its power grid.
A quick note of something that may be important for people to know: I already noted that DMs here are a bit sketchy security wise, but (THIS IS THE IMPORTANT BIT): if you mention someone else's account in a DM, Mastodon, yoinks them into the conversation.
So, you know, if you think you're talking about someone behind their back, you might be doing it to their face.