Train services were suspended between 6.30am and 9.15am on Saturday, and staff evacuated, due to an enormous blaze at a derelict warehouse next to the rail line.

It took 80 fire fighters, 12 engines, two turntable ladders and a high volume pump seven hours to subdue the fire.

Crews were called just after 2am to the former Spiller's Mill site on Station Road, where a 100ft tall empty warehouse was described as “well alight”.

Soon after firefighters began extinguishing the first fire, another structure was set ablaze by flying embers. Both buildings have since had to be partly demolished.

Cambridgeshire police have said they are “keeping an open mind” regarding the cause of the fire while investigations continue. Nobody was injured during the incident.

Platform 3 of Cambridge train station was initially evacuated when the fire broke out and train services passed through the station without stopping.

A Cambridgeshire Fire and Rescue Service spokeswoman said: “The heat from the fire was intense and flames were coming through the roof of the 100ft high structure.

“The buildings are being made safe before a full investigation can begin. At this stage it is too early to say what may have caused the fire.”

A spokesman for Cambridgeshire police said: “We were called to a serious fire at a derelict warehouse building opposite the station at around 2.30am by the fire service. “Police remain open minded at this time as to how the fire started.”