Guam - Random drug sweeps were conducted at the Umatac and Yona fire stations today resulting in at least six firefighters undergoing random drug testing. Guam Fire Department spokesperson Lieutenant Ed Artero tells KUAM that Customs K-9 drug detector dogs visited the Yona Fire Station and the dogs reacted to a certain area inside the building. As per Department of Administration protocol, the entire station was locked down and all of the firefighters who were on duty as well as those who were off duty were called in and ordered to take drug tests. Artero says there were negative findings at the Umatac Fire Station. Officials are now waiting for the results of those tests and Artero stresses that no contraband was found during the search.