A Dutch couple living in Yemen have disappeared in Sanaa, police said on Saturday, with press reports saying they have been kidnapped. \"The police commissariat in Sanaa learned on Saturday of the disappearance a few days ago of a Dutchman and his wife,\" a security official said. Press reports said the couple, who have not been seen for three days, have been abducted by unknown men on the streets of Sanaa, which authorities have not yet confirmed. The Dutch couple are husband and wife, Tazo and Judith, who both work as law professors at the University in Sanaa, as well as for the Radio of Netherlands.