Activists say Najib should resign and the political system and state institutions be reformed to be more transparent and accountable.
Najib has been under increasing pressure after leaked documents alleged that millions had gone into his personal account from a state fund 1MDB.
Najib pledged there will be no cover-up in the investigation of a debt-laden state investment fund.
The PMO said the helicopter was carrying guests back from the wedding reception for Najib’s daughter.
Malaysian Prime Minister Najib Razak on Tuesday vowed to bring to justice the perpetrators of MH17.
Malaysia, a majority Muslim country, had initially sought to have the remains returned by July 28 for Hari Raya.
Siti Amirah, was headed there to celebrate Eid al-Fitr, Islam’s biggest festival, at the end ofthe Muslim holy month of Ramadan.
At least 100 bodies found, debris strewn across 15 km in Donetsk.
JACC said an Australian contracted survey vessel will also be involved in conducting the bathymetric survey, and will arrive in the search area in June.
The assistance would come solely from Malaysia Airlines (MAS), with the Government only stepping in to bear some of the costs if there is a need for it.
Najib Razak said satellite data showed Flight 370 ended in the southern Indian Ocean.
The plane carrying 239 people, including five Indians, vanished from radar screens one hour after taking off from Kuala Lumpur.
Najib Razak spoke to Manmohan Singh asking for his help in the massive search for the Malaysian jet.
Pilot Zaharie, who was know to be an aviation enthusiast, had set up an elaborate flight simulator at home.
In the 2008 general elections,ethnic a Indians stayed away from the BN largely due to a massive rally organised by the Hindraf.