An insurgent group in Iraq has released a videotape that purports to show the suicide bomber who killed 22 people last week at a U.S. military base in the Iraqi city of Mosul.

The video is posted on the Army of Ansar al-Sunna web site. In it, a masked man displays a map of the U.S. installation and describes plans for the attack. Another masked man, identified as the bomber, embraces colleagues. The video then shows what appears to be the explosion that ripped through the dining tent on Tuesday.

In other developments, masked gunmen Sunday killed a high-ranking Iraqi security officer and wounded several of his bodyguards in Baghdad. Separately, a roadside bomb wounded three U.S. soldiers traveling in a convoy in Mosul.

Some information for this report provided by AFP and AFP.