Former prime minister Tun Dr Mahathir Mohamad will be called up by the police to assist in the investigation over his his attendance at the Bersih 4 rally last week, said Inspector General of Police Tan Sri Khalid Abu Bakar.

Khalid said the police will also investigate the statements made by the former premier at the rally.

"We will call him. He had made a speech and several accusations. We want to know more of what he meant and from where he obtained the information," Khalid said at a press conference today.

"For example, he said UMNO division heads have been bribed. So we want to know more. Hope he cooperates," he added.

Dr Mahathir said his presence at the Bersih 4 rally in the city is not a manifestation of rejecting Barisan Nasional (BN).

The former premier stressed that his attendance at the rally had nothing to do with supporting anyone or taking any sides, but merely to 'uphold the rule of law'.

PHOTO GALLERY: #Bersih4 : Through the lens of Astro AWANI

Yesterday, Kuala Lumpur CID chief Datuk Zainuddin Ahmad said seven people including Bersih chairperson Maria Chin Abdullah have been asked to be at Bukit Aman by 10.30am Wednesday to assist police investigation into the rally over the weekend.

Others are Bersih deputy chairman Sarajun Huda, treasurer Masjaliza Hamzah, committee members Farhana Halim and Fadiah Nadwa, secretariat member Mandeep Singh and student activist Adam Adli.

So far, he said, no warrant of arrest had been issued for these seven people.

The two-day Bersih 4 rally which the police declared as illegal is organised by the electoral reform group Bersih 2.0 which says it is fighting for clean and fair elections, and a clean government, among other things.

In Kuching and Kota Kinabalu, organisers stopped the rallies at midnight Saturday and at noon Sunday, respectively.