Umno vice-president Ahmad Zahid Hamidi considers the party's "warlords" to be the party's "biggest problem".

"'Warlords' have become a big problem in Umno, as they expect political rewards or dividends to be given to them.

"This is especially (prevalent) among those with positions as they believe that they should be fielded in the general elections," Zahid said in an interview published New Sunday Times today.