MANILA – Ombudsman Conchita Carpio Morales on Friday said her office will continue to pursue an investigation against President Rodrigo Duterte despite his immunity from lawsuit as an impeachable official.

This came after Morales confirmed that the Office of the Ombudsman has acted on Sen. Antonio Trillanes' plunder complaint against the president.

Trillanes has accused Duterte of hiring ghost employees at the Davao City Hall when he was mayor.

Morales said the complaint was lodged when Duterte was not yet elected president.

Morales also does not know the status of the case after inhibiting from the investigations due to her family ties with the Dutertes.

The Ombudsman is Sara Duterte's aunt-in-law.

"Under the law, even if a person has immunity or even if he is impeachable, you still continue the investigation for purposes whether there is misconduct which can be a basis of impeachment---if it amounts to the grounds for impeachment under the constitution," Morales said.

When asked if her office will investigate Duterte on the allegations of extra-judicial killings, Morales replied that anything could be possible.

"We don't discount any possibility that we'll spare him or indict him. We are talking about possibilities. There are many possibilities,” she said.