SAN CARLOS CITY, Pangasinan: Four alleged big -time drug dealers in the province were arrested in three separate operations on Thursday. They were identified by Senior Supt. Ronald Oliver-Lee, police provincial director, as Domingo Diaz Jr. of Barangay Pangalangan this city; Arsenio Datanagan-Vistro and Jayson Laderas of Poblacion in Urbiztondo town; and Marry Garce Loria-Ballesteros of Tobuan in Labrador town. The Criminal Investigation and Detection Group led by Chief Insp. Nelson Apostol said Diaz is listed No.4 drug suspect in San Carlos City. Lee said Vistro is No.10 and Laderas is No.4 on the drug list in Ubiztondo. The two suspects’ houses were found with several sachets of shabu and drug paraphernalia. Ballesteros was also found with two sachets of shabu.