Sad and disappointed. This is how Najib Razak described the exodus of UMNO leaders while appealing to party members to remain calm and avoid from making hasty decision over their political future,  New Strait Times reports. Umno will not stop anyone from leaving the party but those who leave will be quickly replaced, said party secretary-general Tan Sri Annuar Musa. He added UMNO does not bind its members but reminded them that such decisions should be done on a personal basis. Malaysia Prime Minister Mahathir Mohamad on Saturday refuted claims that UMNO leaders had gone to see him recently to ask him to spare UMNO from being disbanded. Mahathir said the group, led by UMNO deputy president Mohamad Hasan, had instead sought his advice as they wanted to leave the party.