PM says this to more than 50,000 people who gathered to support him.
The embattled PM says he will not step down as Umno president or bow to demands.
IGP says Bank Negara officials and officers from commercial banks were also questioned.
UPDATED 11.30PM Police have gone to DPP's office, seized laptop, documents.
'Donations to Umno from the past up to now have nothing to do with public funds.'
UPDATED 5.54PM The rally in downtown KL stillborn as organisers are carted off.
The 29 nabbed at rally may face up to 20 years in jail if charged and convicted.
UPDATED 3.37PM Dr M says those who used to complain to him have stopped coming.
He says this after Najib blamed DAP for blocking reforms in political funding.
UPDATED 6.12PM PM also accused DAP of not wanting transparency.
UPDATED 4.29PM Dr M sarcastically asks if Muhyiddin had done a 'great crime'.
Umno leader accuses ex-DPM of deliberately arranging for video be recorded and leaked.
UPDATED 4.58PM Jasa director says the state is used to their leaders resigning.
UPDATED 5.20PM Najib whips up anti-Sarawak Report sentiment over 1MDB.
UPDATED 3.14PM 'I might be invited by the police to be questioned.'
UPDATE 2.22PM The NS MB says all Malay-majority seats should be given to Umno.
Malaysian officials were headed to Reunion to look for more debris.
He says gov't has a plan to reduce 1MDB's debt, but needs six months.