FIFTEEN persons, including four women, were arrested in an anti-illegal drugs operation on Monday morning in Sampaloc, Manila. Chief Supt. Roberto Razon Jr., head of the Regional Anti-Illegal Drugs Operation Task Force, said the raid was conducted along the so-called Las Vegas and Ilang-ilang streets, Barangay 418, Zone 48. Most of those arrested were residents of the adjacent Loreto Street. Confiscated from the site were an undetermined amount of shabu and related paraphernalia.