The Associated Press reports
that the shooting occurred on Sunday morning during services at the Sikh Temple of Wisconsin
. Oak Creek police have not yet said who the shooter is, if he or she is in custody, or how many people have been shot.
A spokeswoman for Froedert Hospital said that two men have been admitted. More than a dozen ambulances are reported outside the temple.
originated in the Punjab region of India and Pakistan in the 15th century. Sikhs believe in One Immortal Being, 10 gurus and their teachings, the equality of every human being and the universal brotherhood of man and One Supreme God (Ik Onkar).
There are around 30 million Sikhs worldwide. Some 700,000 live in the United States.