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A alleged dispute over a Facebook friendship request has resulted in severe head injuries for a grade 11 student, who is now recovering at the Kuwaiti Hospital in Sharjah. Image Credit: Supplied

Seattle: Facebook's automatic efforts to connect users through ‘friends' they may know recently led two women to find out they were married to the same man, at the same time.

That led to the man, corrections officer Alan L. O'Neill, being slapped with bigamy charges.

According to charging documents filed on Thursday, O'Neill married a woman in 2001, moved out in 2009, changed his name and remarried without divorcing her.

The first wife first noticed O'Neill had moved on to another woman when Facebook suggested the friendship connection to wife No. 2 under the "People You May Know" feature.

"Wife No. 1 went to wife No. 2's page and saw a picture of her and her husband with a wedding cake," Pierce County Prosecutor Mark Lindquist told The Associated Press.