Lawyer Ulrich Busch told The Associated Press late Thursday he is asking for the German government to retract its agreement to take Demjanjuk on humanitarian grounds.

He says it might take two weeks for the appeal filed with a Berlin administrative court to be ruled upon. And he says even if the ruling is in Demjanjuk's favor, American authorities still could deport him.

Demjanjuk (dem-YAHN'-yuk) is wanted in Germany on an arrest warrant accusing him of being an accessory to 29,000 murders at the Nazis' Sobibor death camp in occupied Poland. He denies the charges.