A lorry carrying more than 20 workers has had an accident with two buses on Jurong Island Highway, the Straits Times (ST) reported.

The incident happened on the morning of Jan. 9 at 7.32am, according to a video uploaded by Facebook user Jason Sean.

ST reported that 24 people were injured, with most of the casualties consisting of the workers in the lorry.

23 of the injured were sent to National University Hospital and Ng Teng Fong Hospital.

The 67-year-old driver of the lorry was arrested.

Here is the post:

[video width="848" height="480" mp4="https://static.mothership.sg/1/2019/01/42765097_138883203788342_1033608607276092381_n.mp4"][/video]

Crashed into the back of a stationery bus, grazed against another bus

Here's how the accident happened:

• Prior to the moment of impact, the bus from which the accident is filmed, via a back camera, comes to a stop on the leftmost lane of the road. According to ST, the bus had stopped to pick up and drop off passengers.

• Subsequently, a lorry carrying workers comes down the lane behind the stationery bus.
• At the last moment, the lorry can be seen moving towards the next lane on the right but ends up crashing into the back of the bus.
• ST added that the lorry had also grazed the side of another bus travelling on the next lane.

Many workers injured, none of the buses' passengers hurt

Another Facebook post by user Jimmy Tan showed the aftermath of the accident in photos:

ST reported that while none of the passengers in both buses were hurt, the workers made up most of the 24 people injured.

Also injured was the driver of the bus that the lorry had crashed into.

ST further added that a worker seated in the front passenger seat of the lorry had to be extracted with hydraulic rescue tools.

Here are some photos of the scene from Tan:

Mothership.sg queries, the police said:

"On Jan. 9, 2019, at 7.37am, the police were alerted to an accident involving a lorry and two buses along Jurong Island Highway. 23 people were conveyed conscious to National University Hospital and Ng Teng Fong General Hospital. The lorry driver, a 67-year-old man, was arrested in relation to the case. Police investigations are ongoing."

In the meantime, here are several more photos from Tan's post of the aftermath: