Drivers watched in amusement as the monitor lizard, a familiar sight in Singapore, reacted to the chase with a sudden burst of speed after sauntering onto the circuit shortly after the start of the daylight session.

A large lizard scampered onto the track and stopped the third and final Formula 1 practice session for the Singapore Grand Prix on Saturday. The session was briefly red-flagged after Aston Martin driver Fernando Alonso reported over the radio that he'd seen the lizard in the middle of the track.

A large lizard on track halted final practice for the Singapore Grand Prix on Saturday as Formula One marshals tried to catch the rogue reptile. Drivers watched in amusement as the monitor lizard, a familiar sight in Singapore,