Saudi Arabia’s religious police have banned red roses ahead of Valentine’s Day, forcing couples in the conservative Muslim nation to think of new ways to show their love.

The Commission for the Promotion of Virtue and Prevention of Vice has ordered florists and gift shop owners in the capital Riyadh to remove any items coloured scarlet, which is widely seen as symbolizing love.

Saudi Arabia imposes an austere form of Sunni Islam which prevents unrelated men and women from mixing, bans women from driving and demands that women wear a headscarf and a cloak.

"As Muslims we shouldn’t celebrate a non-Muslim celebration, especially this one that encourages immoral relations between unmarried men and women, " Sheikh Khaled Al-Dossari, a scholar in Islamic studies, told the Saudi Gazette, an English-language newspaper.

Every year, officials with the conservative Muslim kingdom’s Commission for the Promotion of Virtue and Prevention of Vice clamp down on shops a few days before February 14, instructing them to remove red roses, red wrapping paper, gift boxes and teddy bears. On the eve of the holiday, they raid stores and seize symbols of love.

The virtue and vice squad is a police force of several thousand charged with, among other things, enforcing dress codes and segregating the sexes. Saudi Arabia, which follows a strict interpretation of Islam called Wahhabism, punishes unrelated women and men who mingle in public.