Image copyright Eddie Mitchell Image caption Part of the ride came loose and hit a passer-byFour people were injured when a fairground ride on Brighton Palace Pier reportedly failed. Police were called to the scene at about 15:00 BST along with firefighters who said part of a ride had come loose. Sussex Police said initial indications were that four people were injured. Ambulance crews said one person was taken to hospital with a leg injury. Pier chief executive Anne Ackford said part of the Air Race ride had become detached and struck a passer-by. She added: "The ride has not experienced any issues before and we have been in immediate contact with the manufacturer to ask them to send a team of engineers to investigate." Image copyright Tom Matthews Image caption Initial reports are that four people have been hurt on the rideA spokeswoman for the Health and Safety Executive (HSE) said: "The HSE is aware and we are investigating the incident." Ms Ackford said the pier's organisers "take the safety of our customers extremely seriously and will co-operate fully with any investigation". On the pier website, the publicity for the ride promises visitors they will "race through the skies on this thrilling motion ride which guarantees to send your pulse racing". Skip Twitter post by @SECAmbulance End of Twitter post by @SECAmbulance East Sussex Fire and Rescue Service said it was called to the pier to assist ambulance crews but firefighters had left the scene. South East Ambulance Service tweeted there had been reports that "a piece of a ride had come loose" and a teenager had been taken to hospital with a leg injury. "Others were shaken but uninjured."