According to a report obtained by the Des Moines Register, Clive police reported that the fight, in which Mick suffered a stab wound to the back of the head, occurred in his front yard.
Clive police, as of Wednesday afternoon, had not confirmed whether the Mickeal Gordon Thomson and Andrew John Thomson, 35, were the guitarist and his brother.
However, the band's lead singer, Corey Taylor, did his own investigation after hearing the news and tweeted to fans Wednesday:
'In regards to the story about Mick, I'm doing the best I can to find out if he's alright. I'll get back to you later.'
Then, around 5pm, he wrote:
'Mick Update: from what I've heard he's okay. We're sending him all your thoughts. Thank you for that.'
The fight occurred after 4am, the police report says. After things became especially heated, they moved the fight outside. That's when the stabbings occurred.
Neither brawling brother sustained life-threatening injuries.
They were transported in separate ambulances, reports the Register.
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- nzherald.co.nz and Daily Mail