One of those rockets might have been Ukrainian. Early reports stated that it was two rockets. This does not preclude the possibility that the other one was Russian.
Polish government is averse to releasing further information at this point. Poland is in close communication with other NATO members, including the US. This is probably the reason for keeping a tight lip: facts are in the process of being discovered.
Naturally, Moscow denies it and calls it a "deliberate provocation". MoD has responded as such. For example: state TV in Russia an hour or so ago.
Unfortunately, UA Foreign Minister Dmytro Kuleba shot himself in the foot today by saying it couldn't possibly be a Ukrainian missile that hit Poland. (Personally, I think this is the wrong move. If he has to back up from that eventually, it's gonna look worse than if they'd waited to see what'd happened and had Zelenskyy apologize to Duda. Accidents happen. Nobody's safe from that: not even air defense of a country trying its damnedest to fight off a "brotherly" nation bent on world domination.)
Article 5 worries/predictions appear to be based on nothing but wishful thinking right now. Until we know more facts, Article 4 is more appropriate.
Oh, and it's pronounced 'pshe-vo-doov'.
can you tell i've been tracking this topic