By Yelena Mandenberg One person was killed and 10 injured when a vehicle crashed into a hospital in Austin, Texas, authorities say. The police said that a massive response was on the way. The car hit St. David’s North Austin Medical Center. At least 10 people were injured, but the exact number has not been confirmed yet, with some reports saying up to 49 were injured. The police are calling it a “level four mass casualty.” Austin-Travis County Emergency Medical Services tweeted that they’re helping the injured people right now. They’ve said 10 people are being taken to nearby hospitals and one…