Two motorcycles carrying four officers from the police's elite Rapid Deployment Troops (RDT) were involved in a collision on the Pan-Island Expressway last Saturday.
A video of the incident, which went viral after it was posted online on the same day, shows the motorcycles brushing against each other before toppling. The video ends with the officers falling to the ground.
The incident was captured on the dashboard camera of a car that was travelling behind the motorcycles.
In the video, the car manages to stop in time, narrowly avoiding a collision with the four bikers.
Since it was uploaded onto YouTube, the video has been viewed more than 18,200 times and shared widely on Facebook.
In response to queries from The Straits Times, the police yesterday confirmed that an accident involving two police RDT motorcycles, a car and a taxi occurred on the Pan-Island Expressway (PIE), towards Changi Airport, at about 11am.
"We would like to thank the public for their concern. Two police officers sustained light injuries and have received outpatient treatment," they said, adding that no one else was hurt and the Traffic Police are investigating the accident.
The RDT became operational in July last year as the police's mobile anti-terror unit.
These officers, who are from the Special Operations Command, form the second wave of responders supporting the land divisions' emergency response teams in the event of terrorist attacks.
Two officers ride on an 800cc dual-purpose motorcycle that can handle rough terrain and also allows them to manoeuvre through traffic to reach incident sites quickly.
The black motorbike weighs around 210kg and is equipped with blinking lights, sirens, crash bars and a special latch to carry two circular riot shields.
The added weight alters a motorbike's handling traits, which is why RDT officers have to maintain a higher level of riding proficiency on and off the road.
Each officer goes through basic and intermediate riding courses before being allowed on patrol.
Their timed riding assessments include executing high-speed collision avoidance drills, turning in tight spaces as well as negotiating obstacles found in urban landscapes, such as stairs and kerbs.
Saturday's incident came after a pair of RDT officers were filmed falling off their motorcycle while waiting at a traffic light late last month.
In the video taken on Feb 25, the officer steering the motorbike appears to lose his balance before the vehicle leans to the left and lands on the road. However, the officers quickly regain their footing, lift the bike to an upright position and mount it just before the traffic light turns green.