UPD – O2 Arena evacuation a drill

People were concerned as they did not know it was a drill

An emergency evacuation that took place at the O2 Arena in London was a drill.

According to an eyewitness, an announcement was read out saying: “Due to an emergency it is necessary to evacuate the building.”

The drill sparked concerns to the people at the venue.

The O2 arena is located in south-east London.

source sputniknews.com