Oct. 13 (Bloomberg) -- The U.S. Consulate in Monterrey, Mexico, is working with local police to identify two men who were caught on surveillance video firing shots and throwing a grenade at the consulate building.

No one was injured in the attack, which damaged a gate and some windows, the consulate said today in an e-mailed statement.

Officials found six shell casings from a .45 caliber handgun and a grenade that landed inside the compound but didn't explode.

To contact the reporter on this story: Andres R. Martinez in Mexico City at amartinez28@bloomberg.net

Last Updated: October 13, 2008 12:56 EDT