A UK theme park has banned roller-coaster riders from throwing their arms in the air ... because of complaints about body odour.

Bosses at Thorpe Park say that during hot weather, the number of visitors moaning about B.O. rockets, especially on rides where people put their arms in the air.

As a result they have installed "Say no to BO" signs next to the rides along with an image telling them not to raise their hands.

Staff have also been issued with deodorant sprays for particularly smelly customers who will also be asked to sit at the back of the carriage so other riders do not have to travel through their pong.