Gunfire rang out in the Philippines Senate on Wednesday. It sparked chaos in the building where authorities had tried to arrest a senator wanted by the International Criminal Court in connection with a deadly government crackdown on drugs. It was not immediately clear who fired the shots or why. No one was hurt, officials said. The gunfire erupted as Philippine authorities tried to arrest Sen. Ronald dela Rosa, a former national police chief who enforced former President Rodrigo Duterte's anti-drug efforts in which thousands of mostly petty suspects were killed from 2016 to 2018. (Reuters) Allied senators took Dela Rosa into "protective custody" on Monday, when he reappeared after months of absence. Several senators were still in the building after holding a session when the gunshots were heard by a throng of journalists, including two from The Associated Press. Armed security personnel, including military members, ran around with guns ready and later asked employees to leave as tensions started to ease.…