Munich airport spokesman Robert Wilhelm said Wednesday the Boeing 737 "Royal Flight" was seized on a court order, and is now immobilized and sealed at the airport. A spokesman for the bankruptcy administrator of German construction firm Walter Bau AG says the plane was seized Tuesday because of the Thai government's refusal to pay €30 million ($42 million) it owes the company.

Alexander Goerbing said the Thai government owes the now-bankrupt builder the money because of a contract agreed more than 20 years ago to build and operate a toll highway to Bangkok's Don Muang airport.