Kurnool: An unfortunate incident took place at Muharram celebration. A roof extension collapsed and the people standing upon and beneath it suffered injuries. As many as 20 people suffered injuries in the incident. The injured were immediately rushed to Kurnool Government General Hospital for treatment. Of the 20 people five of them were known to have sustained head and bone fractures. The incident took place at Bandameedi Tandrapadu village on the intervening morning of Tuesday. The roof extension could not hold the number of people standing on it. All the villagers at once removed the debris and rushed to Kurnool Government General hospital for treatment.