Police have confirmed that they will investigate PKR de facto leader Anwar Ibrahim for campaigning earlier than he is allowed to for the Kajang by-election.

Berita Harian reported that Anwar will be investigated under the Peaceful Assembly Act 2012 for not giving required 10 days’ notice to the police for events held last week.

Nomination day for the Kajang by-election is on March 11, with the polls set for March 23.

Selangor Deputy Police Chief Abdul Rahim Jaafar reportedly said that more charges may apply pending investigations under Section 9(5) of the Act.

Election Commission (EC) chairperson Abdul Aziz has also warned that action can be taken if Anwar is found to have breached the rules, said the report.

"What I'm saying is enshrined in the law and all parties competing must comply, no exception,” it quoted Abdul Aziz as saying.

"I ask the political parties to get a police permit, according to the Peaceful Assembly Act 2012 if it is to hold rallies and speeches."

The Malay-language daily further quoted Selangor Umno liaison chief Noh Omar as saying that Anwar had deliberately challenged the law to gain attention.

"For me, if (he is) prosecuted, it would only raise his ego. Let the people judge, we do not want to get caught with his dirty tactics. I'm sure even if (he is) prosecuted, he will blame others," Noh reportedly said.