The Houston Police Department and the Harris County Sheriff's Department are investigating two gunshots that were fired through the window of U.S. Rep. Gene Green's (D-TX) office Tuesday.

Houston Police told Fox 26 that they were not ruling out the possibility the shots could have come from a BB or pellet gun.

The Capitol Police were also investigating the matter, according to Politico.

Thanks to a law signed by Gov. Rick Perry, Texans with concealed-carry permits can bypass the metal detectors when carrying weapons into the Texas Capitol building as of Thursday.

Earlier this year, Rep. Gabrielle Giffords (D-AZ) was shot in the head outside a Tucson supermarket.