Are there at present any passenger rail services between Poland and Belarus? I'm mostly interested in the (Warsaw -) Terespol - Brest (- Minsk) services, but information about other railway border checkpoints are also welcome. Not too long ago, there used to be countless services, now I couldn't find any, but I also couldn't find any source stating they were cancelled or suspended...
It seems there isn't. Here's the obligatory link to Seat 61, on the Warsaw - Minsk section.
Train currently suspended due to Covid-19 and now sanctions & the war in Ukraine.