A public squabble has broken out between the chairman and the ranking Republican member of the Congressional panel investigating safety problems in Toyota vehicles over the contents of internal documents produced by a former Toyota attorney.

U.S. Rep. Edolphus Towns, D-N.Y., chairman of the House Oversight and Government Reform Committee, sent a letter on Feb. 26 to Yoshimi Inaba, president and chief executive officer of Toyota Motor North America Inc., saying that the documents provided “evidence that Toyota deliberately withheld relevant electronic records that it was legally required to produce” in lawsuits.