Over 300 people including Sports Minister Shona Robison were evacuated from Murrayfield Stadium
They were attending the launch of the Year of Sevens event which is part of the Commonwealth Games.
The launch was attended by the Scottish Sevens squad, senior rugby officials, players and representatives from schools.
Edinburgh Rugby, who were training on the back pitches, had to abandon their session while evacuees were ushered onto the field.
It later turned out to be a false alarm caused by a faulty sensor in the stadium’s doping control area