Millions suffered in sweltering heat as most areas were left without electricity for up to eight hours from 2:00pm.
Umno president Ahmad Zahid Hamidi also directed state liaison chiefs to submit names of potential candidates within the next few days.
The leaks raised concerns about the security arrangements at the PM House, which is otherwise considered a highly secure place.
The tragedy has sparked anger among the public, particularly over the police’s decision to fire tear gas inside a stadium.
The prime minister said Imran was "injecting poison into society to dangerously polarise the electorate'" since his ouster in April.
Just days after the Umno supreme council decided that Parliament must be dissolved this year, the Prime Minister will be at a special meeting with Umno division leaders.
A spokesman for the Hong Kong government said the e-vouchers were disbursed via six stored value facility operators.
Officials preparing an integrated security plan said intra-party and inter-party rifts pose more of a threat than armed groups.
Even when there is an agreement between donors and recipients or a third party, such transplants are criticized internationally as inhumane.
The cabinet suggested that legal action could be taken after a steady stream of audio recordings surfaced.