Two Danish backpackers who died in a mass poisoning in Laos messaged a friend to say they had been vomiting blood for hours before they went eerily silent, and were later found deceased.

The owner of a backpackers hostel where two young Australians were staying before they fell violently ill from methanol poisoning has been detained by police for questioning in Laos.

A British woman claimed she lost her vision and became violently ill after drinking vodka at the Nana Backpacker Hostel in Vang Vieng, Laos where six people have since died