Although many people seem to suspect the government, one Twitter user, tinashe chirape, suggested that it was the work of the opposition Movement for Democratic Change (MDC): 
Inagwa watu wengi wanaonekana kuitilia mashaka serikali, mtumiaji mmoja wa mtandao wa Twita, tinashe chirape, alipendekeza kuwa ilikuwa ni kazi ya chama cha upinzani cha MDC chenyewe: