The small plane designed to carry parachutists crashed on an island on the Ume river shortly after take off, police spokesman Peder Jonsson said, adding the cause for the accident was unknown. He said those on board were on a skydiving trip.
China had asked Sweden to extradite Qiao, also known as Feng Li, on suspicion of breach of trust and fraud relating to the embezzlement of the equivalent of about 100 million Swedish crowns ($11 million).
One flight between Sweden's two biggest cities, Stockholm and Gothenburg, generates as much carbon dioxide, the gas that contributes the most to global warming, as 40,000 train journeys, according to SJ, the country's biggest train operator.
For seven years, an ordinary citizen was allowed to tweet what they wanted from the handle for a week, the only restriction being that they break no laws. There were surprises, of course, like the man who tweeted on the pleasures of self pleasure.