PHILADELPHIA (AP) — DC Comics is asking retailers to postpone sales of a Batman comic book out of respect for victims of the shooting at a theater showing "The Dark Knight Rises" in Colorado.

In an email sent to shops on Monday, DC Entertainment wrote that it had decided to postpone the release of "Batman, Incorporated" No. 3 "because the comic contains content that may be perceived as insensitive in light of recent events."

The email, a copy of which The Associated Press obtained Tuesday, did not disclose the content. The series is written by Grant Morrison and illustrated by Chris Burnham.

On Twitter, Burnham wrote that the issue would be delayed for "some grim imagery that would seem wholly inappropriate given the Aurora killings."

He also wrote that "It's not just a Batman comic with guns in it. There's a specific scene that made DC & the whole Bat-team say 'Yikes.' Too close for comfort."

DC Entertainment asked sellers not to make the issue available until Aug. 22.

"Please do not make this issue available at this time. Please hold the copies," the email read.

Also delayed were digital editions of the issue.

DC Entertainment said the issue was not being held because it is a Batman title, but because of concern about the content in the issue.

The publisher's other Batman titles are not being delayed, including the 11th issue of "Batman: The Dark Knight" due out Wednesday and "Detective Comics" No. 12 next week.

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