Toxicology tests on the ingredients of drinks consumed by seven tourists who fell ill in Fiji showed “no methanol or illicit substances,” authorities on the South Pacific island said Wednesday.

The cause of the tourists' illness over the weekend remains under investigation, Fijian Tourism Minister Viliame R. Gavoka said.

Seven foreign tourists who were hospitalized in Fiji after drinking cocktails at a resort bar were not poisoned by alcohol or illicit drugs, officials said Wednesday following a toxicology report. The cause of the tourists' illness over the weekend remains under investigation,