MANILA, March 1 -- The Department of Transportation (DOTr) has asked the National Bureau of Investigation (NBI) to investigate the smuggling and registration of two Bugatti Chiron sports cars that were surrendered to authorities in February.

In a letter released by the DOTr on Friday, DOT Secretary Jaime Bautista asked NBI Director Medardo de Lemos to conduct a possible criminal and administrative probe into smuggling of the luxury vehicles and the liability of those involved.

The Land Transportation Office (LTO) - National Capital Region (NCR) has completed its own probe and found that "documentary and procedural irregularities appear to surround the eventual registration of these luxury vehicles."

Bautista tasked DOTr Assistant Secre...