Some 70 firefighters and 10 engines were at the site in the early hours of Monday morning in a rush to quell the fire, according to the BBC.
"Crews worked hard to get the fire under control and to stop it from spreading to neighbouring buildings", station manager David Reid said.
"Police were called on Monday at 12.10 a.m.to Camden Lock Market to reports of a fire", a police spokesperson told the Telegraph.
Eyewitness accounts include one Joan Ribes, 24, who said, "The fire was moving very fast". She thought the whole building might explode because there are kitchens and restaurants nearby.
Fire crews were called shortly before midnight and police and paramedics raced to the scene minutes later as the flames quickly spread.
It is a popular destination for tourists.
"We have not treated any patients, and we remain at the scene", London Ambulance services spokeswoman said.
No one is believed to have been injured.
In 2008, there was a devastating fire in the market which impacted the area's businesses.
The Camden Lock Market is found next to Regent's Canal and beside Camden's iconic railway bridge.
The market, located in a former industrial warehouse, is mainly known for its craft stalls. "Heroic Fire Brigade stopped this being worse".
It is the second time in recent years that the north London market has been hit by a serious blaze. The local area is busy even when the market itself is closed. In 2014, another fire had caused the evacuation of 600 people.
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