According to this news over 中国新闻网:
What is the meaning of 说明称? 说明 means "explain" while 称 means "call" or "say". So I feel that the words are duplicated.
What I don't understand is why it duplicates the words as 说明称. Why not use just one, which I think enough...?
BTW what is the meaning of 从一开始...? Why is it not 从开始? Well I might pose a separate question...