Malaysian prosecutors files new graft charges against former prime minister Najib Razak and the former chief executive of scandal-linked state fund 1MDB, in the latest cases over alleged theft of billions of dollars from the fund.

Malaysia's former leader Najib Razak and an ally are charged with allegedly looting $1.6 billion of public money, the latest accusations against figures from the scandal-plagued old regime.

The wife of former Malaysian prime minister Najib Razak was charged with 17 money laundering offences yesterday, as anti-graft agents investigate billions of dollars missing from state coffers.

Scandal-tainted former Malaysian leader Najib Razak arrives at the anti-corruption agency for questioning over a massive financial scandal that helped to bring down his long-ruling regime.