Volleys of gunshots were heard at the Philippine Senate on Wednesday, prompting calls for people to seek cover amid mounting chaos, as an attempt to arrest a prominent senator wanted by the International Criminal Court appeared imminent. Reuters journalists observed more than 10 military personnel, clad in camouflage fatigues and carrying assault rifles, arriving at the Senate building. However, the source of the gunfire and the precise nature of the unfolding events remained unclear, with military officials unavailable for immediate comment regarding the troops' presence or any other security personnel inside. There have not yet been any casualties reported after shots were fired in the Philippine Senate on Wednesday, Senate Secretary Mark Llandro Mendoza told reporters. The situation is still being assessed after an undetermined number of law enforcers attempted to enter the building, he said.…