Anyone arrested and guilty of "immorality" under the Crimes Act of 1889 could receive a fine of up to $10 (£6) or a jail-term of up to six months if they failed to pay the fine, she said.

Women should be careful about wearing revealing clothes, the police spokeswoman said.

"We do not encourage that women should be harmed, but at the same time people should note acceptable conduct of behaviour," Ms Hleta is quoted by the privately owned Times of Swaziland newspaper as saying.