Unidentified perpetrators hurled stones and shattered the window of a synagogue in Malmo, in southern Sweden.
The incident occurred earlier this month but was only first reported in the Swedish media on Tuesday after police arrived at the building a day earlier because of a separate incident, which turned out to be a false alarm, the Aftonbladet daily reported.
Fredrik Sieradzki, a spokesman for the local Jewish community, told the TT news agency that the earlier incident happened on October 7 and that it is not yet clear whether it was a hate crime targeting the congregation. There are no suspects.