Five people were arrested after a large brawl broke out at a high school in Englewood Friday morning, Chicago police said.Officers were called to called to Englewood STEM High School, 6835 S. Normal Blvd., about 11 a.m., police said. They arrived to find a large group of students fighting on the second floor of the building. It wasn't known precisely how many students were involved. While attempting to break up the fight, several officers were battered, police said. Four officers were taken to nearby hospitals with minor injuries. Five people were arrested, police said, though it was unclear how many of those arrested were students at the high school.Chicago Public Schools did not immediately respond to a request for details.