Eight people were killed when a workshop complex in the Vietnamese capital Hanoi was burnt down in a fire last week.

The fire broke out at around 2am in a small alley located in the Trung Van Ward on April 12, VN Express reported.

The fire department responded to calls about the blaze by sending more than 300 firefighters to put out the scene.

Flammable materials such as plastic and wood were being housed in the workshop complex, which fuelled the fire.

It took the firefighters about two hours completely neutralize the blaze.

Authorities then confirmed that at least eight people had died in the fire, which destroyed four workshops.

Meanwhile, rescuers were still searching for people allegedly missing in the burnt complex.

The four facilities that were destroyed include a warehouse, a plastic bin production facility, a storage space for wooden items and a moisture grains workshop.

Authorities have launched an investigation to uncover the cause of the fire.

More than 120 people were killed in fires in Vietnam last year, which numbered over 4,000.