KUALA LUMPUR, May 14 (Xinhua) -- Malaysian Prime Minister Mahathir Mohamad said on Monday that the new government has banned more officials from leaving the country, amid an expanding corruption probe which targets many serving the previous government led by former Prime Minister Najib Razak.

"We are investigating various officers who the public have accused of wrongdoing, and if necessary, we have to stop them from leaving the country," said Mahathir at a press conference, without revealing the names.

Mahathir, who built much of his campaign by accusing Najib of corruption, vowed to control corruption and cronyism after the election. He has ordered a travel ban on Najib and his wife and replaced the former attorney general Mohamed Apandi Ali, who was appointed by Najib.

Mahathir also said he will find a replacement for the head of the anti-corruption authority, after the resignation of former one.

The 92-year-old, who has been on a busy schedule since taking office, on Monday also met with the Sultan of Brunei Hassanal Bolkiah, the first world leader to pay a visit to Malaysia after the election.