The State Department harshly condemned the deadly arson at a Palestinian village but stopped short of attributing it to Jewish extremists.
The condemnation issued Friday was over an arson committed Thursday at two Palestinian homes near Nablus. An 18-month-old baby perished in the fire, which injured several of his relatives.
The European Union blamed violent Jewish settlers for the crime, whose perpetrators left Hebrew-language graffiti about revenge. These and other clues made Israeli police suspect it was a hate crime carried out by Israelis.