A medical helicopter has been called to a crash scene that is impacting traffic on the I-10 Katy Freeway. The crash is in the eastbound lanes of I-10 near Greenhouse Road. The scene is reported on Houston Transtar as a two-car crash that is mainly blocking the left-hand lanes. (Photo courtesy of Houston TranStar)Houston Police confirmed they were called about the crash shortly after 2 p.m. Thursday. Life Flight has been called to the scene.