Very little.
According to what I heard, the Jewish cemetery was eliminated by the Communist government in the 1950s. Apparently, it took quite some time until the graveyard was actually destroyed to make place for apartment buildings and a large park.
The buildings surrounding the park seem from the 1970s.
It seems in 2025, a monument dedicated to the Jewish victims of the Shoah was erected; a handful of headstones have been placed there as well, apparently in an aesthetically pleasing manner.
As mentioned in the article on the local Synagogue, some gravestones have been moved to the shul’s entrance hall.
It is not clear to me, who erected the monument. The name of an artist, Adriena Kutaková and a number of donors are mentioned.
Perhaps the wall shown below is the only remnant of what used to be a Jewish cemetery:
