An auxiliary police officer opened fire twice at a vehicle on the Second Link bridge on Monday night, after it appeared to try to run him over, said the Immigration and Checkpoints Authority (ICA) yesterday.
In a statement, the ICA said that four vehicles stopped midway along the bridge, near the international boundary between Malaysia and Singapore, and two officers were sent to investigate the situation on foot.
As the officers approached the cars, two of them made a sudden U-turn and headed towards Malaysia, said the ICA.
The other two complied with instructions to head towards Tuas Checkpoint but, while being escorted, one of the cars "suddenly reversed in a dangerous manner, against the flow of traffic, towards the officers who were on foot".
"One of the APOs (auxiliary police officers) fired two shots at the vehicle, but the vehicle continued on its way towards Malaysia," the ICA said.
The driver of the remaining vehicle was arrested at Tuas Checkpoint and police investigations are ongoing.
Preliminary investigations indicate that the group was involved in smuggling cigarettes into Malaysia, said the ICA.
No one was injured in the incident, said the ICA, which added that it happened at about 11.45pm, when traffic was light.
This incident follows another security breach at the Tuas Checkpoint in June.
Then, a Singaporean businessman had sped off in his 7-series BMW sedan after he was stopped for checks.
He had tried to smuggle foodstuff, including curry puffs and kueh (local pastries), from Malaysia.
Two other motorists also tried to breach the Woodlands Checkpoint that same month, although they were both stopped and nabbed within the checkpoint.
Yesterday, the ICA advised motorists to comply with the instructions of border officers.
"ICA takes a serious view of any activity that breaches security or threatens the integrity of our borders," it said .