Manila, Oct. 12 -- The National Bureau of Investigation (NBI) on Monday said it is tracking the flow of money allegedly delivered by former Speaker Lord Allan Velasco's bodyguard to members of former President Rodrigo Duterte's family.

In a press briefing, NBI Director Melvin Matibag presented photos and videos of what he said were properties linked to the Duterte family.

He said the NBI is examining whether these properties are connected to possible money laundering and if the funds were used for land banking or the purchase and accumulation of land as an investment.

The NBI is processing the affidavit of Rodulfo Gracioso, a dismissed police officer and former bodyguard of Velasco.

Matibag said the investigation also aims to determin...