Manila: Gunshots were heard at the Philippine Senate on Wednesday, prompting people to take cover as tensions escalated over a possible attempt to arrest a senior lawmaker wanted by the International Criminal Court (ICC).

Reuters witnesses reported multiple volleys of gunfire at the Senate building, where more than 10 military personnel in camouflage uniforms had earlier been seen, some carrying assault rifles. The source of the gunfire and the identity of those involved were not immediately clear.

Authorities have not yet confirmed why troops were deployed to the area, and military officials were not immediately available for comment. It also remained unclear whether additional security forces were inside the building.

The incident comes amid mounting tensions surrounding Senator Ronald dela Rosa, a key figure in former President Rodrigo Duterte’s controversial “war on drugs.” Dela Rosa said on social media that his arrest was imminent following the ICC’s release of a warrant related to alleged crimes against humanity.

The senator, who has been inside his Senate office since earlier this week, called on supporters to mobilise and block any attempt to transfer him to The Hague, where former President Duterte is already awaiting trial on similar charges.

“I am appealing to you, I hope you can help me. Do not allow another Filipino to be brought to The Hague,” dela Rosa said in a video message.

Dela Rosa previously served as the national police chief and was a central figure in the anti-drug campaign that led to thousands of deaths. Human rights groups have accused authorities of systematic killings, allegations that police have consistently denied, saying those killed were armed suspects who resisted arrest.

Gunshots heard at Philippine Senate as tensions rise over possible arrest of senator