Laos - It was supposed to be an unforgettable trip after graduation, but the adventure for two young women in south-east Asia came to a tragic end - both lost their lives. Now their parents are speaking out.

The two 19-year-old Australians Bianca Jones and Holly Bowles died of methanol poisoning at the end of November, along with four other tourists , after drinking contaminated alcohol in a bar.

"Our girls were murdered - and nothing is being done," Bianca's mother laments desperately in an interview with ABC.

The investigation into the tragic case is more than questionable: twelve suspects were arrested but released shortly afterwards. No progress, no answers - for the relatives it feels like a cover-up!

They also accuse the Laotian authorities of excluding the family from important information.

The parents of the victims have now had enough. They are calling on tourists to boycott the country until the deaths are finally properly investigated.

Together with the relatives of the other deceased tourists, they are doing everything they can to put pressure on the authorities until justice is finally achieved for the victims.