In pictures: World marks Valentine's Day

As part of the world gets out its red roses, pink hearts or anything remotely cute, St Valentine's Day has also provoked controversy in some countries.

Kenyan flower street vendors had a good day, as men in their thousands went on a hunt for red bouquets.

In Thailand, almost 40 couples set up a new world record for the largest underwater wedding.

Thailand had a double scoop, with dozens of couples taking part in another mass wedding ceremony .

Flowers were also in huge demand in Hong Kong, and some businesses used the "love" day to attract more customers.

A pub in England decided to celebrate the day by serving up a beer it claimed was an aphrodisiac

In Iran, authorities have shut several shops selling Valentine's Day products, saying they were an insult to Islam...

...while in India, dozens of religious activists went on the rampage against stores selling Valentine's Day products.