An investigation has been launched into a blaze which saw hundreds of workers evacuated from a landmark Birmingham office complex.

Four fire engines and three police cars were sent to the Fort Dunlop site in Erdington, where the Birmingham Post is based, just after 8am yesterday.

Security staff cleared the building while eight firefighters wearing breathing apparatus tackled the fire, which began in the kitchen of a ground-floor cafe called Scoff.

Police cordoned off the entrance to the car park of the eight-storey building, causing long tailbacks on the A47 Fort Parkway between the Fort Shopping Centre and Spitfire Island.

A West Midlands Fire Service spokesman said: “Gas and electricity supplies to the building were isolated while the fire was dealt with.

“The fire damaged 90 per cent of the kitchen, while at least half of the rest of the coffee shop was smoke-logged.

“Fire investigators are now trying to establish what caused the incident.”

Hundreds of employees based at the former factory, including Birmingham Mail staff, were unable to return to their offices until around 11.30am.