MANILA - In line with President Rodrigo Duterte's directive, Senator Antonio Trillanes will not be arrested unless a court issues a warrant against him, following the withdrawal of his amnesty, the Philippine National Police said Monday.

Duterte voided the amnesty absolving Trillanes of charges for 2 failed mutinies due to his alleged failure to apply for it properly and express guilt for his crimes.

The President over the weekend said he will let the Supreme Court decide if Trillanes should be detained, after the lawmaker petitioned the court to block the invalidation of his amnesty.

• WATCH: Duterte says Trillanes amnesty up to Supreme Court

"We will wait for the warrant of arrest, very clear iyung sinabi ng ating Pangulo, 'Let the court decide.' We'll wait for the decision of the court there," PNP chief Director General Oscar Albayalde told reporters.

(The President clearly said, 'Let the court decide.')

Until the matter is resolved, several patrol cars and a team from the police Criminal Investigation and Detection Group will remain outside the Senate gates to ensure the safety of Trillanes and legislative employees, said Albayalde.

"That's just a proactive action.. We should be ready for any order," he said.

As a Navy lieutenant, Trillanes and his Magdalo band of soldiers and junior officers occupied the Oakwood Hotel in 2003 to protest alleged corruption under then President Gloria Macapagal-Arroyo.

Trillanes won a seat in the Senate in 2007, campaigning from detention.

In November 2007, Trillanes and the Magdalo walked out of their coup d'etat hearing and occupied the Manila Peninsula Hotel to press Arroyo to resign.

He was granted amnesty in 2011 under then President Benigno Aquino III. He was reelected in 2013.

• READ: Proclamation of ex-President Aquino granting amnesty to Trillanes, other military rebels

He remains holed up in his office at the Senate building, from where arresting officers have been banned.

• READ: 'Kakaririn ko kayo': Trillanes to go after foes in amnesty row