DENVER - A man is in police custody after more than a dozen shots were fired during a standoff  near E. 12th Ave. and Grant St. early Thursday morning.

Denver police say the shooter, later identified as Shaun Michael Tobelmann, 34, was on a balcony, firing shots down 12th Ave.  During the 4-hour standoff they warned people to stay out of the area or stay inside their homes.

"The bullet doesn't have a name on it," said Lt. Matt Murray. "It just goes which way it's going."

A SWAT team arrived just after 2 a.m. and police blocked streets for several blocks around the area.

"The Gotham" building at 1190 Grant St. was evacuated.

Police confirm they released a chemical agent into the building, but said Tobelmann continued to fire shots, before surrendering at approximately 6 a.m.

There are no injuries reported.

Tobelmann was arrested on a warrant for third degree assault and discharge of a weapon. Police said the case will be brought to the District Attorney's Office for formal charges.

Colorado arrested records indicate Tobelmann has an alcohol problem. He's had four DUI arrests in Colorado since 1998, resulting in at least two convictions -- one for DUI, another for driving while ability impaired.