Palestinian President Mahmoud Abbas on Friday offered an apology after he was accused of anti-Semitism for suggesting that historic persecution of European Jews had been caused by their conduct, not by their religion.

Abbas condemned anti-Semitism and called the Holocaust the "most heinous crime in history" in a statement issued by his office in Ramallah after a four-day meeting of the Palestinian National Council (PNC), at which he had made the remarks.

"If people were offended by my statement in front of the PNC, especially people of the Jewish faith, I apologize to them," Abbas said in the statement.