Police are looking into a number of collisions in Douglas last weekend.
Officers say the incidents occurred on Pulrose Bridge, Hillside Avenue and Bucks Road between 11.10am and 11.30am on Sunday, July 14.
The constabulary wants to hear from anyone who may have seen what happened and is asking witnesses to come forward.
Anyone with information is being asked to get in touch with Police Headquarters.
Framework of new Sea Services Agreement ready, says minister
Attorney General says he's stepping down
Road closures in two towns for running event this week
Six weekend ferry crossings could face disruption
President of Tynwald announces retirement
Police close Mountain road
Fuel firm says "fingers crossed" for calmer energy costs
Ring doorbells will need data protection registration - but shouldn't cost you money