The case has drawn criticism internationally, with Canada saying on Monday it would complain to the Saudi authorities about the sentence.

Josee Verner, Canada's minister responsible for the status of women, called the Saudi ruling "barbaric" and said it would only further violate the 19-year-old victim.

Verner said Canada would formally express its condemnation to "the appropriate Saudi authorities".

But the US, which wants Saudi Arabia to attend its Middle East conference in Annapolis next week, did not condemn the ruling.

Sean McCormack, a spokesman for the US state department, said: "This is a part of a judicial procedure overseas in the court of a sovereign country," when asked to comment on the case.

"That said, most would find this relatively astonishing that something like this happens."

Asked whether the Saudi authorities should reconsider the sentence against the woman, McCormack said he could not "get involved in specific court cases in Saudi Arabia dealing with its own citizens".