Ismail, the Bera MP, arrived at the MACC headquarters at 9.52am.

The former prime minister is being called in as a suspect in an investigation into four of his former senior officers.

He declared his assets to MACC on Feb 10 and was questioned by the agency on Feb 19.

He was also questioned by MACC officials last Thursday and Friday for around six hours each day.

A source from the anti-graft agency previously said it could not confirm how many days Ismail would be questioned.

Ismail, who collapsed at home on Feb 22 and was hospitalised for blood pressure-related problems, could not attend two previously scheduled sessions with MACC on March 5 and 7 after being issued medical certificates by his doctor.

MACC previously said that about RM170 million in cash and 16kg of gold bars worth millions of ringgit had been seized in raids at the residences of the four officers and three other premises believed to be “safe houses”.