A British woman's bulging wig did not fool customs agents in Norway who discovered a kilogram of cocaine glued to her head.

'Smuggler' used big wig

Officers have detained the 32-year-old on suspicion of drug smuggling, authorities said.

The suspect, whose name was withheld, arrived late on Sunday at Vaernes airport near the city of Trondheim on a flight from Copenhagen, Denmark, the customs service said.

"The agent thought she had a great deal of hair and suspected that she was wearing a wig," the agency said.

"The wig was examined and the agents found a bag of cocaine."

Norway's largest newspaper, Verdens Gang, said the cocaine was glued so firmly to the woman's real hair that police brought her to the local hospital to have it removed.

Kjetil Mjoesund, of Trondheim police, confirmed that it was glued to her head, but had no information about how it was removed.

He said she was taken for a routine medical check.

A court ordered the women held until July 15, pending a formal indictment and trial.