"Our leadership is rejected by the rakyat and, moreover, is rejected by our own members. BN's vote count was less than the number of Umno members in the constituency. Within and among our component parties, we ran a poorly coordinated and listless...
"Today is proof that this wave cannot be held back. Umno must change. We must begin by renewing our party leadership. I am confident that by December, we shall," Tengku Razaleigh said in a statement on Tuesday.
Razaleigh Hamzah, a former MP and veteran politician, said Abdullah had lost "what scraps of credibility [he] had left" following Anwar's victory.
"He may not have the credibility needed to keep the country together," Razaleigh said in a statement issued on Wednesday.