On 21 November 2013 , the roof of a Maxima XX store in Riga collapsed , killing 54 people and seriously injuring many more . So far it is not known what caused the disaster , but the police are investigating three scenarios : that there was an error in architectural design and authorities overseeing planning had been negligent ; that the cause was related to the initial building procedure ; and that it was caused by the current construction of the green roof
collapsed
Zolitūde shopping centre roof collapse
Maxima Group