At least 1,000 Europeans who came as tourists to Nepal prior to the April 25 devastating quake are still missing, European Union's ambassador to the Himalayan nation Rensje Teerink said here on Friday.Those unaccounted for were mostly trekkers in the Langtang and Lukla areas of the country, Teerink said.Twelve Europeans have died in the devastating quake and subsequent avalanches in various parts of the country.Langtang is a trekking region to the north of Kathmandu that has been hit by a series of avalanches and mudslides and Lukla is the jumping-off point for trekkers and climbers making the nine-day trek to Everest base camp.