AURORA, Colo. (MCT) — A masked gunman opened fire in a Colorado movie theater showing the new Batman movie early Friday morning, leaving 12 people dead and 50 wounded, according to police and local media. Children are among the injured, officials said.

The shooting came minutes after the 12:05 a.m. premiere showing of the widely-anticipated “Dark Knight Rises.” A suspect is in custody. The Denver Post said the suspect is 24 years old.

An eyewitness told the Los Angeles Times that the gunman “busted in” through a door near the front of the screen in Theater No. 9 at Century 16 in Aurora, a suburb of Denver. The gunman then “threw a canister across the theater,” unleashing gas, “then started shooting,” the witness said.