A shooting during Sunday services at a Sikh temple left at least seven people dead, including a gunman, and at least three critically wounded, police and hospital officials said.

Four people were shot inside the Sikh Temple of Wisconsin in suburban Milwaukee and three outside, including a gunman killed by a police officer, said Greenfield Police Chief Bradley Wentlandt.

“This is the best information we have, and this information may change,” he told reporters outside the temple.

Read More: Reuters