An estimated P2.8 million worth of suspected shabu was seized in a drug bust operation conducted by operatives of Regional Police Drug Enforcement Unit (RPDEU)-6, Philippine Drug Enforcement Agency (PDEA)-6 and Police Station 8 at Block 3, Lot 5, Camella Bacolod South Circumferential Road, Barangay Tangub, Bacolod City on Thursday, May 16.