Dela Rosa, who had been taking refuge at the Senate since Monday, has now moved to a different location after what his wife described as an "escape" before dawn on Thursday.

This comes as the Malaysian police said on Friday that investigations are ongoing into allegations that Low had attended secret meetings in Kuala Lumpur last year.

In a letter to Indonesia President Prabowo Subianto, Chinese businesses said policy shifts on mining, export earnings and enforcement have raised costs and uncertainty.

Rolling one-hour power outages, which hit parts of the capital Manila and the rest of the main island of Luzon, are scheduled to spread to the central islands.

The concept, which draws on the ancient Greek historian Thucydides, describes the danger that conflict can erupt when a rising power challenges an established one.