Umno will not remain quiet if certain quarters attempt to frustrate efforts to free its former party president Najib Abdul Razak, who is serving a six-year prison term.

Party vice-president Mohamed Khaled Nordin made this clear when asked what if there is opposition from Pakatan Harapan or DAP, which were vocal about the 1MDB scandal in the past.

He stressed that Umno would not turn its back on the former premier...