Dan Wheldon tragedy reminds us all of risks - Sebastian Vettel

F1 world champion Sebastian Vettel says the death of British Indy driver Dan Wheldon should remind everyone of the dangers in motorsport.

The Red Bull driver concedes that safety regulations have been improved in his sport, but the tragedy in Las Vegas is a stark warning of the risks drivers take.

Wheldon was killed during the Las Vegas Indy300 when his car was involved in a 15 car pile-up.