SINGAPORE, May 8 -- A couple has been arrested following a violent assault in Singapore that was caught on camera and shared widely online, sparking investigations into offences including grievous hurt, drug consumption, and the possession of weapons and illegal vape products.

In a statement issued late yesterday, the police said they had been alerted to a viral video on Facebook showing a man in a long-sleeved shirt assaulting another man after a plastic bag was handed over during a transaction.

The video, uploaded on May 6, has since racked up 1.4 million views and around 7,000 shares.

According to the police, the man in the video suddenly began punching the victim - who was dressed in a yellow shirt - after receiving what appeared t...