President Barack Obama said he was "deeply saddened" and pledged his administration's commitment to fully investigate the shooting.
At this difficult time, the people of Oak Creek must know that the American people have them in our thoughts and prayers, and our hearts go out to the families and friends of those who were killed and wounded.
As we mourn this loss which took place at a house of worship, we are reminded how much our country has been enriched by Sikhs, who are a part of our broader American family.
More top news
A 41-year-old man has died after being attacked by his Staffordshire bull terrier.
A garden aimed at comforting people with dementia will form part of the Royal Horticultural Society's (RHS) Tatton Flower Show.
French presidential candidate Francois Fillon's wife has been handed preliminary charges in connection with the alleged "fake jobs" scandal.