British historian and Holocaust-denier David Irving will not be permitted to give tours at Poland's Auschwitz-Birkenau State Museum, museum officials said Tuesday after the controversial historian arrived in Poland to lead a tour of Nazi sites.

"Proper actions" will be taken if Irving made statements that denied or played down the Holocaust while visiting Auschwitz, a museum spokesman told the Polish Press Agency PAP.

"We cannot allow statements that harm the memory of the victims," spokesman Bartosz Bartyzel told PAP....