At least four people were killed Saturday night and nine others were injured when gunfire erupted at a nightclub in Birmingham, Alabama, local officials say. No arrests were immediately made. The incident happened just after 11 p.m. when officers were called to a shooting at a nightclub in the 3400 block of 27th Street North in the city of Birmingham. Upon arrival at the scene, they found multiple victims, both inside and outside the club. Police spokesman Truman Fitzgerald said three people died at the scene, including two women inside the nightclub and one man on the sidewalk. A fourth victi…