Reitzenhain (dpa/sn) - When the cartridge of a gas cooker exploded, a truck driver was seriously injured at the border crossing towards the Czech Republic in Marienberg-Reitzenhain (Erzgebirge district). The 59-year-old was taken to a hospital in a rescue helicopter, the federal police said on Tuesday. The border crossing had to be closed for about 90 minutes late Monday evening for the helicopter to land.