A construction crane crashed onto a shopping mall in central Norway on Friday amid strong winds, injuring at least one person and leaving another unaccounted for, police said.

The winds likely caused the unmanned crane, which was at least 50 metres (165 feet) high to slam onto the mall in Melhus, which is south of Trondheim, the Scandinavian country's third-largest city, police spokesman Ebbe Kimo told the VG newspaper.