Manila, May 17 -- Philippine National Police chief Gen. Jose Melencio Nartatez Jr. ordered an internal investigation into allegations that local police escorted Senator Ronald "Bato" Dela Rosa out of the Senate compound on May 14.

"Let me be absolutely clear: the Philippine National Police does not operate on blind because the integrity of our institution is at stake. While we have received the initial clarification from the Pasay City Police Chief, I have already directed concerned investigative units to conduct an independent review of the logbooks, CCTV (closed-circuit television) feeds, and radio dispatches from that morning," Nartatez said in a statement on Sunday.

Pasay City Police chief Col. Joselito de Sesto earlier confirmed he...