Mechanics hurt in two separate pitstop incidents during Sunday's Singapore grand prix have escaped serious injury.

The most spectacular incident involved championship contender Felipe Massa, who despite getting a green light from Ferrari's unique 'traffic lights' solution pulled away too early.

The Brazilian yanked the fuel hose from the rig and carried it the entire length of the pitlane, and was penalised for unsafely pulling into the path of Force India's Adrian Sutil.

Another victim of the melee was a Ferrari mechanic, who after being knocked to the ground was taken to the circuit medical centre.

"The most important thing is the guy is okay, he is being brought to the medical centre and will see if he has any injuries or not," team spokesman Luca Colajanni told ITV Sport.

Later in the race, the Red Bull lollipop man wrongly gave David Coulthard the signal to drive away from a pitstop, and a team mechanic was hurt.

"He has damaged his ankle ligaments and burned his thumb, but fortunately other than that he's okay," said team principal Christian Horner.

Source: GMM