The blaze broke out at 11.15am and 21 members of the London Fire Brigade were called to the scene in Greenwich to extinguish the fire, which occurred in the restaurant’s extraction system.
The O2 confirmed to Event that no events were scheduled to take place in the arena on the day. The venue will be refunding or rescheduling ticketholders who had booked for Cineworld, the Up at The O2 climbing experience and its Elvis at The O2 exhibition.
The fire was under control by 1.24pm and the venue reopened at approximately 4.30pm. The cause of the fire is under investigation.
Martin Freeman, station manager at London Fire Brigade, said: "Although this was a small fire it did create a lot of smoke and so security staff evacuated people from arena. Crews quickly tackled the fire and then searched the ducting between the roof and the ground floor to ensure that they had thoroughly damped down any remaining hotspots.
"There were no injuries."
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